Why does nobody control their kids in a public setting?

Holy shit I can't tell you how many times i had to slam on the brakes at work as to not completely bulldoze these kids whose parents let them run around. I'm afraid I'm going to get sued or fired someday for one of these kids slamming into me while carrying a tray full of hot coffee or soup and it will burn and hurt someone. Who cares if I get burned but if a customer or that kid was to get burned my ass would be thrown into the meat grinder.