Did you use Chat GPT to write this post? The wording is very strange.
Far too much poor treatment of horses results from an owner who no longer rides and is not doing their due diligence to make sure the animal is cared for. It happens at all income levels and is far from exclusive to show horses. I know quite a few coaches who recommend that juniors from non-horsey families lease and not buy for this reason- tired of seeing the parents send the horse to a place like this when the kids goes to college to save money. That trainer is scamming people and defrauding people and not a good horseman- period.
As far as turnout- thatās not normal even for the west coast. Yes some facilities have very little turnout but horses still get out as much as possible, and most have in-and-out stalls or paddocks they can use to socialize etc.
The pawing when going one direction is stress- my guess is he is losing his sight or has a neuro problem that makes turning right feel unsafe. It could be painful too. I personally would have a parent reach out to the owner one time and share their concerns with the care and his physical issues. Be factual and concise and donāt get into a back and forth. Then move on. Unfortunately you cannot do anything more. You were right to stop riding, thatās above your paygrade.
This is a good lesson how itās important to provide a good quality of life for all animals in our care and how some people simply donāt do it. A lot of people just suck. Learn to find the good ones.