My son has just turned 6 years old and been riding off the leadline for only 5 months. And he has sat bigger crowhops than that from his little pony. Frankly, I think having a first pony that give him the occasional power struggle, throws the odd kick and crowhop turns him into a better rider and I'm thankful she isn't push button.
My son is autistic, and while he is high functioning, one of ways it manifests is he struggles with is understanding empathy. That only means I have done double time and worked extra hard to teach him exactly how you do and don't treat animals. And I think if my little boy saw that girl with her pony, he'd walk straight up to her and deck her. At six, he already knows better. I know if I was there, I'd certainly snatch that crop out of her hand and feed it to her.