I'm on PGCE placement, and although I've learned all the names in 'my' class, I am obviously not going to learn all the names in the school.
I've realised that when I don't know the name I'm defaulting to 'young man' for boys and 'sweetheart' for girls, which grosses me out because of the sexism, and worries me if I misgender someone (it's primary so some of them are at that age where it's hard to tell). I try getting the names, obviously, but it's not practical in every situation.
Is there a good catch-all "you-child" term I'm missing?