I’ve been mulling this over, and just read JustJump’s post with interest. Although rather nasty, and pretty intolerant of other views, she/he makes some really good points.
The horses I ride now (at age 50) in comparison to my wonderful OTTB I had in my 20s, are very different. I still ride a lot, and want to learn, but my safety is first in my mind now. I would not own my OTTB now - my time/physical ability are very different. Skill wise, he’d be a piece of cake for me now. But safety wise? Not so much. So things will change over time.
I think you need first to look at your goals. Do you want to show? If so, are you physically able for the rigors that will take. I have a friend in her 70s who is fitter riding wise than most 20 year olds. I also know people in their 40s who I’m afraid for each time they ride. So evaluate your physical ability (balance, mentality, etc), against your goal. Show now, or just enjoy the process. Be honest with yourself.
Second, is this horse safe for you. Take the emotional baggage out of it (rescue, etc). My OTTB was not safe for me to show - it was an accident waiting to happen - but at home we could control it. IE, not have to see situations through that I couldn’t deal with. We could set up for success while my trainer trained us both. And it worked. He was also in a full training program. A lot of problems mitigated that way.
Talk to your trainer openly about this. Ask specifically about safety. 'Am I overmounted? Will this horse always have this hole, and is it something you think I can safely deal with? Illicit honest answers, and listen without emotion. I don’t know whether the horse is in full training, or at your own home, but that will make a huge difference in your trainer’s answer. Ask about feed, turnout, etc. All the things that will affect your horse’s attitude.
If the answer is, yes he’s safe enough, it will just take forever, then you have a decision to make.
If the answer is no - then look at whether he’s safe at home, or where the issues are. If the trainer really thinks this situation is a wreck that he can’t keep control of, well, then again, you have a decision to make, and will have to evaluate the risks.
And, as said, you need to really be sure that your trainer has you best interests at heart. After you coolly evaluate all this honestly, you’ll know what to do.
And now, contrary to JustJump’s assertion - I am off to ride, (since I don’t generally ride at 1am when I wrote my first post), then watch the Hunter Derby Finals.