It's part of the calling to at least do a few songs in the show that give people some hope. There's so much hurt in this world and... music is such a great healing balm and a great way to forget your troubles. ↗
There was one public school for boys, and one for girls, but Jewish children were admitted in limited numbers - only ten to a hundred; and even the lucky ones had their troubles. ↗
If you are you, 24 hours a day, then you do not have to remember who you are supposed to be in different situations - something that I imagine could be troublesome. ↗