@paintedChix - it's not the girl's age, it's her lack of "education." You had the education, and you were continuing your education with knowledgeable people. The vast majority of this girl's "education" comes from "the University of YouTube." Granted, you can learn lots of useful things there (that's where I learned how to tie a rope halter) but you only find what you go looking for. As you can see from the ad, one thing she went looking for was how to train your horse to lie down, which is a cute trick, but I guarantee you she has never long-lined this or any other horse. In the ad, she says, "horses;" her other horse is a mini. She has trick-trained her mini, too - she has taught her to chase ("follow") her in the pasture and to rear on command. You know ponies - the mini doesn't wait for a command, she volunteers (a lot). As long as this girl has this mini, she knows that these are tricks that the mini was taught, and she thinks they are cute. But what happens if the mini gets sold and starts chasing a child around and rearing near it?
We seem to have a lot of "trainers" like this around here - young people who pick up a trick or two, and decide they are trainers. I'm just waiting for this one to start offering lessons . . . .
Interesting that we are also talking about horses with vision problems - perhaps you have noticed that the horse I've been talking about is a snowcap Appaloosa. She's night-blind, as are all homozygous Appy's. While I was working at the barn, we had several incidents with this horse or one of the few-spots that most likely had to do with things getting changed, and the horse not learning the new set-up before nightfall. Eventually, though, they do adapt, and adapt well; I'll bet that a lot of owners of few-spots and snowcaps never realize that their horses can't see in the dark.