Should twins stay together at school

[justj]

I am enroling my twin girls in our catchment school*. They will go in august when they are 4. (5 in November).

They are non identical. they like to be togther but don't 'need' to be together. They are at nursery where they sometimes play together and somtimes not. These days they are both confident and neither is particularly dominant all the time. They have pretty similar intellectual abilities and both are pretty sociable. Yet they do have very different personalities.

Assuming the school has more than one class, should I ask for them to go into the same class or not? my inclination is to have them in the same class for p1 and then see how they go. I asked them what they would like and typically one said together and the other said separate.

Am I just being sentimental worrying about them being apart?

Do any parents of multiple, multiples or teachers out there have any opinions on twins- separate or together?

TIA
J

(*we live in scotland- slightly different rules around school admission we don't do all the 1st choice stuff- kids usually go to a catchment school)

im a twin too (identical) and me and my sister went into the same class in infants, stayed in the same throughout junior and even secondary we got put in the same class and college we did the same subjects so we ended up mostly together all the way til a level, then we went to university one in scotland one in london, so we seperated then. we were happy to be together, we did have mainly the same friends throughout school but we were quite happy to be in the same friendship group and we did have other separate friends too.
we were separated for a bit in nursery, and i remember being really upset about it (i was the one who got seperated into a new group away from sister and also other friends) so maybe thats why we went into the same class for school.
in secondary one history teacher started on at parents evening about how he prefers to separate twins and my mum was really peed off as he was fixating about this rather than speaking about our progress. we were similar ability in school, my sister used to do slightly better but i think its cos she put more effort in but i was not bothered, she is more competitive than me. if difference in ability had been a lot that may have been more of an issue.
but if yours are happy to go seperate then maybe just go seperate from the start? just sharing my experience. thinking about it it is a bit unusual to stay together whole way til a levels really but it did work out okay, we are not freakily attached to each other or anything and were fine about separating for uni.
we also had another identical twins (boys) in our school class so i think it may have been our primary schools policy to keep them together, twins in the yr below were also together