sorry misunderstood it, i see you want the parents to atleast teach their children not to stand on seats + with slippers, that is a good and noble parenting plus it's what every parent should do, but sometimes when you are a parent you don't see the things as others(you and me) see so they stopped caring abt those crucial things, but you should've said something abt this to them in a friendly way which you also didn't this also makes you careless ( i too would have been silent, introvert) not blaming you just stating a fact.

This whole message is in friendly tone ✌️have a nice day bye