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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

AIBU to assume an almost 12-year-old no longer believes in Santa?

240 replies

EagerHelper · 25/06/2026 09:45

My sons are in their 30s so maybe I’m misremembering, hence this post to get some feedback from parents with younger kids.

My niece is 12 in a few weeks, and I was asking her what she wanted for her birthday. I mentioned something she might like and she said “no I think I might ask for that for Christmas”, which got us on to the subject of Christmas. I told her how oldest son wrote to Santa but didn’t tell me, then when he didn’t get the requested gift that’s how he found out Santa wasn’t real.

Niece just carried on chatting but her mother (SIL) was staring daggers at me and they left shortly after.

I then got an angry message from her saying niece still believes in Santa (and the tooth fairy apparently) and I’ve ruined things.

I was very apologetic, but it would never have occurred to me that an almost 12 year old would still believe.

Is this still common at that age? I’m pretty sure my sons stopped believing at about the age of 8 at the latest.

OP posts:
Lollipop81 · 26/06/2026 17:22

LittleGreenShoots · 25/06/2026 09:56

I'd be surprised if she didn't know. My then 8 year old looked it up on google to confirm his suspicions and told me quite bluntly 'I know you're lying Mum' 😂

🤣🤣🤣 my 8 year old hasn’t thought of this yet, he has been asking since he was 5 and I’ve managed to keep it going. He is obsessed with Google so I guess it’s only a matter of time.

JerryGiraffe · 26/06/2026 17:50

I think it's quite sad the magic fades so quickly. I was ready to sit my ds 11 down last christmas and tell him before secondary school. He informed me very gently that I had no idea what I was talking about and neither did the kids in school but if I wanted to he could do what he does with them - nod wisely and go along with it because it's rude to tell people they're clueless 🙈
I asked if he told them he believed. He said he didn't because he didn't need anyone's permission to think what he liked.
I don't really know where to go from here, but he is 12 in a week and remains convinced santa is real, regardless of what people say. Not sure if I'm impressed he doesn't just follow the crowd, or exasperated because he won't listen! 🤣

EagerHelper · 26/06/2026 18:13

Some of these posts 😂 no I didn’t do it deliberately or want to “get one over” on my SIL. Here’s how the conversation went, not verbatim because my memory isn’t that good.

Me - “what are you getting for your birthday niece, are you hoping for (that thing) you wanted?

Niece - “no I think I’d rather have that for Christmas and have lots of little things instead for my birthday”

Me - “oh that’s good, I wanted something similar for like three Christmases in a row and never got it. Might get it as an adult now I can”

(general discussion at the table about 80s Christmases and how we’re all still salty about that one gift we always wanted and never got)

Me - “yeah I always tried to make sure (sons) always got what they wanted because of that! Although there was that one time (son) wrote a letter to Santa to ask for this one thing and didn’t tell me, so he didn’t get it. He was all aha! I knew Santa wasn’t real”

SIL - daggers

OP posts:
PleaseAccepyMyUserNames · 26/06/2026 18:22

I was babied a bit, but I remember questioning Santa around age 8. I knew then he wasn't real, but there was no way I'd tell my mum as I didn't want to upset her. My 9 year old niece has also worked it out, and drops hints all the time wanting me to confirm it (no way, I'm not going there! 😂).
Theres no way a 12 year old believes in Santa, and I imagine the mum's anger is more about her feelings rather than about her daughters childhood being ruined, and struggling with the reality of her starting to grow up etc etc?

JJWT · 26/06/2026 18:33

I'm sorry, what?! What do you mean?!

Sorry.
Couldn't resist.
Reminded me of that Phoebe Buffay moment.

Iwantaircon · 26/06/2026 18:48

EagerHelper · 26/06/2026 18:13

Some of these posts 😂 no I didn’t do it deliberately or want to “get one over” on my SIL. Here’s how the conversation went, not verbatim because my memory isn’t that good.

Me - “what are you getting for your birthday niece, are you hoping for (that thing) you wanted?

Niece - “no I think I’d rather have that for Christmas and have lots of little things instead for my birthday”

Me - “oh that’s good, I wanted something similar for like three Christmases in a row and never got it. Might get it as an adult now I can”

(general discussion at the table about 80s Christmases and how we’re all still salty about that one gift we always wanted and never got)

Me - “yeah I always tried to make sure (sons) always got what they wanted because of that! Although there was that one time (son) wrote a letter to Santa to ask for this one thing and didn’t tell me, so he didn’t get it. He was all aha! I knew Santa wasn’t real”

SIL - daggers

Edited

There’s no way she didn’t know. She’s just playing along with her mum for whatever reason. You’ve done her a favour. Now she can talk normally about xmas to her mum. I was putting xmas presents away with my seven year old son when he said , he doesn’t exist does he? So I said no but it’s a fun story ( we laughed) just don’t tell your younger siblings til they’re older.

WilliamsandWatsonTooLateNSoul · 26/06/2026 19:08

The tooth fairy..aye right and at 12 how many teeth is she losing and putting under her pillow
Sil is nuttier than squirrel poo.

GotMarriedInCornwall · 26/06/2026 19:13

My 10 and a half year old still very firmly believes in FC, the tooth fairy and the Easter Bunny. She is probably autistic though which possibly contributes to why.
As a teacher, I’m always careful with Year 7 and even sometimes Year 8 as I’ve taught some kids who do still believe at that age.
I don’t think I’d be cross with someone for slipping up though at that age. It’s a fair assumption that most kids do know by the end of primary school.

inappropriateraspberry · 26/06/2026 19:54

I never told my mum I didn’t believe (I think I secretly thought I may not get a stocking if I admitted it), and she’s probably doing the same. I’d be amazed for anyone of secondary school age to still actually believe.

Swimmingteacher21 · 26/06/2026 20:01

EagerHelper · 25/06/2026 09:45

My sons are in their 30s so maybe I’m misremembering, hence this post to get some feedback from parents with younger kids.

My niece is 12 in a few weeks, and I was asking her what she wanted for her birthday. I mentioned something she might like and she said “no I think I might ask for that for Christmas”, which got us on to the subject of Christmas. I told her how oldest son wrote to Santa but didn’t tell me, then when he didn’t get the requested gift that’s how he found out Santa wasn’t real.

Niece just carried on chatting but her mother (SIL) was staring daggers at me and they left shortly after.

I then got an angry message from her saying niece still believes in Santa (and the tooth fairy apparently) and I’ve ruined things.

I was very apologetic, but it would never have occurred to me that an almost 12 year old would still believe.

Is this still common at that age? I’m pretty sure my sons stopped believing at about the age of 8 at the latest.

12 is pretty late. And it does seem that she was chilled about it even though her mum wasn’t.

My kids have always known Santa isn’t real. We tell them that it’s fun to pretend though and we do a lot of the fun traditions like putting out milk and cookies, but if you ask them straight up they’ll say he’s not real, just a fun idea.

scalt · 26/06/2026 20:10

Our family had a game which we played right up to 11 or 12. On Christmas Eve in the garden, wrapped up in our winter coats, we children were blindfolded, and had to listen out for sleigh bells (made by someone shanking them from an upstairs window), and listen for the thud of something being dropped in the garden, which we then had to find my torchlight.

Weknew it was all pretend, but we loved it!

ThisZanyPinkSquid · 26/06/2026 21:33

Regardless of when your children found out NEVER assume a child knows or not!! You play along and never admit unless you know!! I would be devastated if their own auntie ruined the magic 😢

Anon501178 · 26/06/2026 22:22

Yes YABU....Some of these replies are really sad and just highlight how people expect kids to grow up way too fast nowadays, saying 7 or 8 year olds are too old to believe in santa is crazy! And even at 11 they are still very much a child.Let them be young and playful and imaginative as long as possible....let's not force them into the boring & serious world of adulthood too soon :(

HumberSquid · 26/06/2026 22:26

The age of criminal responsibility is 10. How can a child be, on the one hand, criminally responsibility for their actions and on the other not to old to believe an old man dressed in red comes down every chimney in the world on the same night delivering presents?

Quizzled · 26/06/2026 22:45

@EagerHelper “general discussion at the table about 80s Christmases and how we’re all still salty about that one gift we always wanted and never got”

You wanted Mr Frosty didn’t you?! It’s the thing everyone wanted in the 80s and I don’t think anyone ever got 😂 I finally got one in my mid-40s and it was the biggest disappointment ever, such rubbish.

BeKookyExpert · 26/06/2026 22:56

This reply has been withdrawn

This message has been withdrawn at the poster's request

Elaina87 · 26/06/2026 23:53

8 is on the young side.... You may be misremembering there. Although my nephew was only 5 when he stopped but he's like a little old man. My eldest is nearly 8 and I'm hoping another year or 2 out of her believing. I wouslt expect past age of 10 though. Your niece likely knows and just hasn't told her mum that she has stopped believing

Dogmum74 · 27/06/2026 08:18

What is this fascination parents have with ‘believe or not.’ My son is 24 and it has NEVER been said in our house that there is no Santa. Ever. Part of the magic of Christmas is Santa. (Clearly he knows there isn’t really a man who drops down chimneys). It’s all just part of what makes Christmas magical

Dogmum74 · 27/06/2026 08:19

JerryGiraffe · 26/06/2026 17:50

I think it's quite sad the magic fades so quickly. I was ready to sit my ds 11 down last christmas and tell him before secondary school. He informed me very gently that I had no idea what I was talking about and neither did the kids in school but if I wanted to he could do what he does with them - nod wisely and go along with it because it's rude to tell people they're clueless 🙈
I asked if he told them he believed. He said he didn't because he didn't need anyone's permission to think what he liked.
I don't really know where to go from here, but he is 12 in a week and remains convinced santa is real, regardless of what people say. Not sure if I'm impressed he doesn't just follow the crowd, or exasperated because he won't listen! 🤣

Perhaps he just loves the magic of Christmas? Why do you care? It is amazing

Dogmum74 · 27/06/2026 08:21

MagnoIia · 25/06/2026 10:13

My youngest is this age. She does not believe. But I would not be happy if someone took it upon themselves to directly say "santa is not real", because in our family, it's never been admitted. We just don't verbalise it. I know she knows he's not real, I know she knows I know she knows he's not real, but we (and her older sibling) have this unspoken thing that it's just not directly admitted. That's OUR way, our magic, and not yours to shit upon.

DO NOT DISCUSS SANTA with other people's kids UNTIL AND UNLESS the parent has directly talked about Santa not being real themselves in front of the child. I am in my 50s and my mother has still not ever said "Santa is not real" to me. I like that!

This!!! I literally just posted this! My son is 24 and it has NEVER been said amongst us there is no Santa. Ever. Like you said, don’t shit on other people’s magic!

PersephoneParlormaid · 27/06/2026 08:22

I had to tell my youngest when she went to high school!

Dogmum74 · 27/06/2026 08:23

Anon501178 · 26/06/2026 22:22

Yes YABU....Some of these replies are really sad and just highlight how people expect kids to grow up way too fast nowadays, saying 7 or 8 year olds are too old to believe in santa is crazy! And even at 11 they are still very much a child.Let them be young and playful and imaginative as long as possible....let's not force them into the boring & serious world of adulthood too soon :(

Totally agree. My 24 year old would never dream of saying out loud there was no Santa as he wouldn’t get a stocking anymore lol 😜

Pinkpony123 · 27/06/2026 12:09

Being in secondary school she likely knows but just hasn't said (same with the tooth fairy) scammed money out my mum for years that way, brother made the mistake when he was like 7 saying she wasn't real and stopped Tooth fairy money very quickly.
Also used Santa present (got 1 selected present from Santa in my household) as a surefire way to get the thing that I wanted (normally a specific lego set) as my mum still assumed I believed so had to make sure she found it 🙈😂😭

Brokentoes85 · 27/06/2026 12:36

OrsolaRosso · 25/06/2026 09:49

It's obvious that the niece doesn't believe any more, but hasn't told her Mum yet, or assumed her Mum knows.
Surely your SIL cannot be this unaware?

That's not obvious at all, and pure speculation.

I've worked with plenty of older children who firmly believe

Brokentoes85 · 27/06/2026 12:38

purser25 · 25/06/2026 10:05

How can a 12 year old believe in the tooth fairy just doesn’t make sense. Surely she knows that people buy her presents or maybe she has never been told to thank people for presents they have given her.

Lol this has got to be the stupidest comment so far.

...or her parents buy the presents from father christmas and the tooth fairy, and the presents from other people are from other people who she thanks