Unfortunately, bad stuff will happen. Little kids probably shouldn't use them because thinking logically, the bands are probably less likely to break due to their weight. It would also depend on the thickness of the band used, some people tend to go overboard with the thickness, and that's where trouble can happen.
My 40 pound niece would have a harder time break the bands then my chubbiness would. LoL. I've never used them before but have thought about it. My feet ALWAYS come out of the stirrups when I race. Luckily I have really good balance but it still affects my ride because I tense up and end up checking my horse without meaning to. Which adds time onto my rides in the end.
I frequently get popped out of the saddle as well. Especially if the ground is really tore up around a barrel, my mare tends to trip and I get shifted in my saddle. Can't say I've ever ridden my horses neck before, but I'm glad nothing serious happened to your friend. One time my belt got hooked to my saddle horn during a run. The front pocket of my hoodie got stuck on my saddle horn during a take off, LoL. And the best of all. My dangly belly button ring, got hooked into my belt buckle so I could not sit up straight in my saddle or my belly button ring would get ripped out. And don't you know when your leaning over a horse like that, it means to go fast, not slow down? LoL, Yep, my horse knew that too. Heck of a time trying to pull him up. LoL.
Lessons I took away from those leaning experiences that I now live by...
- Don't wear a belt when riding.
- Take out belly button rings when riding.
"The greatest pleasure of a dog is that you may make a fool of yourself with
him and not only will he not scold you, but he will make a fool of himself too."