AIBU to wonder how twins’ closeness changes in adult life?

My Uncles are twins in their 80s. They still look exactly the same!
Sometimes one of them gets a funny sense and will call the other one and he’ll say something (bad) has happened - earlier things like car prangs, pet deaths and that sort of thing but later on health things like cancer diagnosis, they have a spider sense for each other somehow.
They don’t share hobbies or have similar careers but seem very close, mainly without talking much!

My identical twins are 7 and are close.
A relative doesn’t get on with her identical twins and they rarely speak.

I have a twin, we aren't close and are very different people. Growing up, I was much closer to my other sibling.

It's like every other sibling relationship, some are close and some aren't. Maybe because I am a twin and don't know any different, but I don't get the mad fascination people have us as if we are somehow one mass collective unit and it certainly grinds my gears the assumptions made we must have all have some special bond. Of course some do but so do other siblings of different ages.

It's literally just two individual siblings born on the same day. Or that's how I've always felt about it.

Why would they need to do the same hobbies? Your twins are individual people in their own right. They shouldn't be made to do everything together and if one wants to do one hobbies and the other doesn't then let them.

You wouldn't be having this same thoughts if they were a year apart.

Maybe because I was the opposite sex but actually it should just be the same, my parents were very clear we were to be in different classes at school and to be treated as individuals. It's the best thing they did and I'm so glad we were never forced to do everything together because we were twins.

My SILs are identical twins, now in their 60s. My dh has always felt a bit excluded from their relationship. As a child SILs shared a room, he had to sleep lonely on his own (of course his parents also shared a room, so he felt like the odd one out with no-one to share with). The twins had shared friends, shared secrets, went to Brownies and Guides together, giggled together. He went to Scouts but had no one who was interested in his woodcraft badge.

As older adults, everyone is cordial, get on OK, but I also know that sometimes I am the butt of 'the girls' private jokes and humour (the nutty SILwho goes to yoga...)

Both SILs were single into their 40's. I imagine if either of them had met a partner earlier, or if they'd had children, the dynamic might have been different. But despite having husbands/partners now, the twin bond is the primary bond in their lives. Their wills leave their money to each other, not to their husband/partner.

My sisters are twins. They are very different, apart from physically, from each other, and aren’t close at all. They haven’t been since their teens, and are now in their mid-60s, so I do t suppose that will change.

Ex dh and his twin haven't spoken for 20 years

I have boy/girl twins.

they were in the same class at secondary and the teacher did not realise they were twins - they don’t look alike at all.

they are not close as adults. One twin has an autoimmune disease plus autism and adhd and the other is neurotypical.

I'm no contact with my twin, she was a truly evil child for the entirety of my younger years, she resented the fact I existed and did everything possible to make my life hell. I stopped attending family events and dreaded every Christmas when I would have to be in the same house as her as an adult. I finally cut her off and have had 10 years of peace with no contact or communications. She's blocked on everything and I've told family that I don't want to know about her. Please treat yours like separate people and parent them so they know that bullying and cruelty is not acceptable just because you're twins.

I have identical twin daughters, 31 years old.
They fight like cat and dog, but always make up quickly, their bond is unbreakable.

I always treated them as two separate girls growing up, dressed them differently, different classes at school, different friends and hobbies. They are different from each other, but uniquely linked. They can read each other’s minds. It’s weird, fascinating and beautiful all at the same time.

Two of my BIL are fraternal twins, they’re in their 30s. They’re close, but not especially so, having very different jobs and living 70 miles apart.

I know one set of adult identical twins. Very different personalities, live halfway across the world from each other. I’ve known them since after they got married so not sure how the dynamic was before. I know they studied in different countries for university. Each of them is focused on their own nuclear family and although they wish they do more things together, they prioritize their children and wives.

My mum had twin cousins. They had a canny ability to turn up at the same places unplanned.
I have twin friends who have a equally canny ability to turn up at things in the same outfits. Inc one night they'd discussed clothes, arranged to wear different then both changed mind thinking it would be fine based on the phone call.

One of my kids had twin nursery teachers, took me ages before I twigged they're was two of them, as they both looked at me with a pen stuck in their hair exactly the same way.
Apparently some of the kids were better at telling them apart than some of the staff.