For work I was involved in running a family event over the weekend. I was shocked at how many little girls were wearing high heels. Like this, but also a lot of boots with heels even higher. On girls age 6-10.
It's one thing for an adult to choose to wear heels, but buying them for a child? Do people really not understand how damaging they are? They alter the gait causing unnatural stress on feet, ankles, knees, hips, spines etc. I don't know why someone would want to subject a growing body to this.
When I was a girl I coveted high heels (but children's heels didn't really exist back then outside of tap classes), so I can understand that some children may beg for them, but parents can always say no. Just because they are in the shops doesn't mean you have to buy them! (note, I'm not talking about the plastic dress up heels which are usually worn around the house only).