From Kindergarten to Senior schools, children do same orchestrated dramas for adult audience that is only interested in clicking best possible snap of their lovely child.
Ideally school should not need sweepers if our children were actually well behaved.
Few years ago my child's school was admonished by auditorium management for the trash that parents left behind.
I don't know if this is just Indian phenomenon or worldwide human nature.
Looks like it is later.
Children giving emotional performance about adult issues is hallmark of modern age.
Adults just clap, give prizes (even Nobel) and go about their business almost as usual.
Crocodile tears are abundant everywhere. We have our own bollywood and TV soaps who do a brilliant job.
End of rant.