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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

Original poster

Aibu to overthink a booster seat in boyfriend’s car?

63 replies

rachel55488 · 16/07/2026 10:46

So I took my partners car this morning and there was a booster seat in the back of his car.. and his kids are older.. teenager and other one in their 20s. My daughter has been in his car but I don’t ever remember her bein in a booster seat is this dodgy lookin??

OP posts:
CarbootJunction · 16/07/2026 10:47

Ask him.

Fiendishandfiery · 16/07/2026 10:48

ask him ?Confused

Squirrelsarecleverbastards · 16/07/2026 10:48

What do you think might it mean?

MyArtfulGreySloth · 16/07/2026 10:48

Well he obviously drives with a child in the car regularly.

purplecorkheart · 16/07/2026 10:48

Ask him we cannot really say. It could be for a niece or nephew. It could be he has a younger child or it could be that he lends his car to someone.

PepsiBook · 16/07/2026 10:48

That bizarre that you start a thread, but haven't just asked him.
Why is that?

BillieWiper · 16/07/2026 10:48

Is your daughter of an age where she might need a booster seat? He could have one left over from his kids and thought you'd find it handy?

Or the other option, is you suspect he might have another secret younger child?

Why would he lie about that? I mean you should just ask him about it. But if you don't trust his answer then the relationship is going nowhere.

Original poster
rachel55488 · 16/07/2026 10:51

BillieWiper · 16/07/2026 10:48

Is your daughter of an age where she might need a booster seat? He could have one left over from his kids and thought you'd find it handy?

Or the other option, is you suspect he might have another secret younger child?

Why would he lie about that? I mean you should just ask him about it. But if you don't trust his answer then the relationship is going nowhere.

My daughters 6

OP posts:
Original poster
rachel55488 · 16/07/2026 10:51

purplecorkheart · 16/07/2026 10:48

Ask him we cannot really say. It could be for a niece or nephew. It could be he has a younger child or it could be that he lends his car to someone.

He doesn’t have any nieces or nephews this why I’m confused

OP posts:
HoldMyWine · 16/07/2026 10:51

Just ask him!

Bristolandlazy · 16/07/2026 10:53

Maybe he bought it for your daughter then. If you can't ask him about it that's most odd.

ChickenBananaBanana · 16/07/2026 10:57

Op why are you with him you do nothing but worry and question everything

BillieWiper · 16/07/2026 10:58

rachel55488 · 16/07/2026 10:51

My daughters 6

Show quote history

Ok sorry Idk if that's an age for a booster or not. I don't drive. But if so that could be the reason. Just ask him! Not in an accusatory way.

gamerchick · 16/07/2026 11:02

Ask him?

Its handy to have. I keep a car seat in the car and I don't have any littlies. Grandson isn't a massively regular visitor but I don't see the point in taking it out.

OwlCalledSage · 16/07/2026 11:04

I’m now staring to think you’re on a wind up with these threads.

You are not mature enough to be in a relationship.

Decacaffeinatednow · 16/07/2026 11:05

I'd run a mile from you if I was him.
Also read this
https://www.gov.uk/child-car-seats-the-rules

He is breaking the law if he is driving without your 6 year old being in a car seat.

Child car seats: the law

The rules for child car seats and booster seats - height, weight, age, type of vehicle, car, minibus, licensed taxi

https://www.gov.uk/child-car-seats-the-rules

Weeellokthen · 16/07/2026 11:08

He's got a secret child
Family child
Planning on abducting a child but is car safety conscious
Got it for yours
Or else, you could ask him instead of us because he's the one in the know 😂

FiveShelties · 16/07/2026 11:09

Is this the one with the toothbrush collection🙄

WhatAMarvelousTune · 16/07/2026 11:12

is this dodgy looking

What do you think is going on? A secret child? A secret relationship with a woman who has a child? A plan to abduct a child??

Just ask him.

Canonlythinkofthisone · 16/07/2026 11:12

Well it would be illegal to drive your 6 year old around without a car seat
....
So. Probably that.

Weird that you'd let your child in the car with someone you seemingly don't trust or are able to have a conversation with....

Wherethedogsits · 16/07/2026 11:16

Yabu to not have just asked him.

How long have you been together?
Why do YOU think he has a booster seat?

Wherethedogsits · 16/07/2026 11:16

BillieWiper · 16/07/2026 10:58

Ok sorry Idk if that's an age for a booster or not. I don't drive. But if so that could be the reason. Just ask him! Not in an accusatory way.

Show quote history

Do you have dc?

dnadiscoveryquery · 16/07/2026 11:17

You have to be on a wind up with all these petty threads op.

Please spend some time single, and do some maturing first.

Thechaseison71 · 16/07/2026 11:17

BillieWiper · 16/07/2026 10:58

Ok sorry Idk if that's an age for a booster or not. I don't drive. But if so that could be the reason. Just ask him! Not in an accusatory way.

Show quote history

Yeah it's normal for a 6 year old to have a booster seat

BauhausOfEliott · 16/07/2026 11:17

OP, you really aren't in any state of mind to be in a relationship. You've posted about a dozen threads in a matter of weeks in which you are convinced that your boyfriend is cheating on you, for reasons ranging from a typo in one of his text messages to him going for a drive on a sunny day to owning more than one toothbrush. You also announced that you wanted a baby with him when you'd only been with him five months.

Nobody here knows if your boyfriend is shagging someone else but JFC, this isn't healthy for either of you.