Bonjour !!
In my opinion I am again school single sex. To me it's a kind of discrimination.
It's not so easy to be in classes with girls and guys. They have lots of prejudices the one to each other because, unless they have brothers or sisters, it stays an unknown world.
So the sooner you mix them, the best it is. They will learn about feminine and masculine identities, probably have some conflicts....and much more as they will grow up as heart brakes, feelings that you've been the marionette of some stupid bets....but that's how life is anyway.
You will also meet wonderful friends who will be there for you for ever, masculine or feminine, Real friends have no sex, they just are your friends.
And being inn a masculine and feminibe school will help you to judge people not because they are male or female, but just about their personalities.
J"espère t"avoir aidé('e)
bonne soirée
