I've seen girls as young as 5 or 6 in 3+ inch heels and it's fucking bonkers to me. Aside from sexual fetish connotations, that shit is awful for you biomechanically and even worse when the body is still growing. Adults can fuck up their bodies as much as they want but those kids don't know any better. You know their mothers are psychos who see them as living dolls to dress as they please or something.
I have seen some kids wearing like 5 inch heeled shoes, which was really fucking weird to me. Like walking around the neighborhood with their friends.