Horse is 10. I have no clue whether (a) he just needs time or (b) if it’s a true limitation. I’ve tried everything I and my trainer knows of. It’s led me to come to terms with selling as (a) I don’t have the time, money or a personal trailer to show/school/get off property a lot to get that experience and (b) if it’s a limitation, it’s not in line with my goals (a bronze). I wish I had a crystal ball and could know!
I think with both mental and physical roadblocks there are people who can get further with a certain horse whether it’s their setup, training program, rider experience, or whatever. People post here all the time asking versions of this question. Is it ulcers? Saddle fit? The rider? The snow falling off the roof? Does the mare need regumate? Or whatever.
That said, i do believe every horse has a ceiling and no amount of program, rider, trainer, vet work and everything can get the horse to go above that ceiling. However, there are countless horses that are excellent and safe teachers at their level that do not deserve to be “pushed”. There was probably some Olympic medal quality horse sold as a 2 year old that sits around in some lady’s backyard and gets ridden 2x a week. I believe that as long as the horse is fed and cared for, who cares.
Shades of gray to say the least.