I am pretty sure that (in the USA at least) expansive horse show circuits are one of the big contributors to the deterioration of horsemanship.
Trainers (very frequently) have to get students into the show arena as soon as possible. The excitement of showing, the build up, ‘goal’ setting, special events and facilities, rules and memberships, all provide a structure of hoops for clients to jump thru/over. These obstacles, very often, provide the momentum that keeps people coming back to the barn, taking lessons, leasing, buying, etc.
Unfortunately, the basic question of competence gets pushed to the side. If you have been around the block, you have seen it at every level. From the beginner riders who can barely hang on while white knuckling it around a jump course, to heavy seated, heavy handed, brace back dressage riders spur/pulling their way through a test, to weak riders on six figure mounts with their feet rubber banded into stirrups, etc, etc, etc. Almost no discipline is immune. And at every level, you will see riders, trainers, and competitors utilizing all manner of gadget and tactics to ‘get the horse to do it.’
If we consider that Covid 19 COULD make horse shows (as we know them) a thing of the past, will you still be interested to ride and train? Would you do it if there were not ribbons, year end awards, etc? Do you enjoy horsemanship enough to pursue it without the ‘hoops’ of the show systems to propel you forward?