Horses at the dude ranches (at least ones that I've been to) frequently have a great deal more turn out and are "rotated" through work a bit more. I agree that some lesson horses suffer the same circumstances, but at least at the location I was volunteering, most of these horses were expected to do more than just be led around. There were several off-the-lead lessons or ones where the leader was really only supposed to be an anchor in case the horse acted up... not actually a leader. There were a few riders that would just haul on those reins and bang bang bang with their legs, which always made me wince. And of course considering their circumstances you can't really get after them for it as much as you might an average kid taking lessons. They don't understand the subtleties of using gentle aids that gradually become stronger as needed... nor to they understand the use of their seat.