I have a friend who worked in kindergarten taking care of the children. From what they told me, I can tell you, it's no easy lunch for virtuous people with ideals, who want to help and educate the children there. The amount of playing hierarchy games and bickering and bullying and whatnot, that happens when someone wants to improve things for the children... It basically crushed that friend and often made them cry, until they got out of those shit holes named kindergarten.