We saw it on Primeval Whirl several years ago. The little girl in front of us was wearing very thick flip flops she could barely walk in and had her hair pulled straight up in a pony tail (think like Pebbles Flintstone

). The CM had her take her shoes off and also pushed her hair down.

Despite her crying and her parents huffing and puffing she wasn't able to get on. I had my grand daughter with me that trip and she looked at me in a panic. I told her not to worry about it as she was plenty tall enough to ride. I was shocked when the CM also measured her. She didn't have to take her shoes off though. She was wearing regular tennis shoes and was obviously tall enough to ride. Im still not sure why they measured her though.