So in the pros column for showing - I would agree with
@sarahann1 there is nothing nicer than getting fancied up with your horse and going out to perform the best you can!
For me the training for showing really bonded me & my horse & taught us both alot of skills - trotting up nicely in hand, having manners in a group, having manners for a judge, patience for standing around, patience for being fussed at and generally being an allround nice horse to around and behave. The better we did at all those things, the better our results.
Saying all that, having done it now for all of 2 years, I still dont know maybe people out showing, its quite clichey but you start to see the 'producers' & get to know the 'judges' that will just look at the start list and mark out the winners before ever looking at a horse in the go-around. So no, we will never get 1st or 2nd or achieve our goal of wearing a sash one day (I might just make my own!) but yeah its a nice day out where I get to practice stuff with my horse that I've trained for at home and I love the feeling he gives me on a gallop or in the canter showing off so as long as we are having fun, then I'm in! (We also do working hunter, showjumping, hunter trialling and all other general allrounder stuff!)
But as an outsider - I do see a definitely need for an evolution of the sport (not going that road!) and everything needs to adapt and move with the times, we have seen it with showjumping and eventing and even dressage for better or worse but yeah - it really does need a shake up. I dont see why there cannot be score sheets, with accurate evaluations and comments so you can improve etc just like dressage. Actually during lockdown I did some online showing classes and we got just that - a marked sheet with comments and feedback (we won that one!) but it can be done!
Its really noticeable aswell when a ride judge gets more say than a conformation judge aswell or the other way around, I've had conformation judges love my horse as a traditional stamp but then get overruled by a ride judge - so you just cant predict on how it goes to swing! And I've seen ride judges not drop down a 'producer' when a horse behaves badly or just doesnt perform on the day - because they dont want the backlash which they know will come. One time a ride judge brought me right up the placings on the ride and dropped a producer out of the line up completely - she got verbally attacked by him in the car park and was literally pulled away by other people shouting at her, its not acceptable behavior but there is no one body governing showing like there is with dressage, showjumping and eventing so how do you get things changed (sorry now thats true for Ireland, not sure about the UK).