Years ago, yes. Still could if needed to. But it worked out well for following reasons.
My father was a Saddlebred trainer, and I learned a lot from him, and I was also around fantastic horsemen too, and soaked it up like a sponge. I read all the time about differing style of riding, training and handling, and had people that I could bounce ideas off of, or more importantly, that were doing the things I was interested in at the time.
I knew how to read horses from that exposure to horsemen/woman.
I knew when I was overhorsed.
I understood the importance conformation and attitude and "try" gives to training any horse. And I understood the difference in how the breeds react too.
I was not brought up with the attitude that "you can love a horse into being your friend and then you can train it" that I find is so prevalent now. While I read the Black Stallion and Flicka? I knew that those were stories.
The reason that people caution against training horses when you essentially know nothing about it? The horse will pay the price if you mess up. By ending up slaughter bound.
Too many problems can be nipped in the bud by an experienced horse person, whereas someone with little or no knowledge will not have the understanding to fix it, before it becomes unfixable. And that? Happens every day.
Read the posts on here, too numerous to mention, about "my horse bites" or "my horse is kicking me" or "my horse knocked me down, bolted, reared, backs up when I want to ride, horse pins ears at me and chases me out of pasture".
All of the above, and the many more I didn't even touch on? Are caused by someone not knowing how to read a horse, and worse, many times those same people are also posting that "I don't want to make my horse not like me" and "I want to gain my horse's trust, before I try to train him".
Touchy feely does not work well with horses, if at all.
Horses can hurt you. And kill you.
Most people are capable of working with a horse to get it do do whatever it is they want it to do. But most people don't have the patience or expertise to modify or create a behavior that is fully and permanently instilled. How many times do you read on here and elsewhere that a horse bucks. Folks, a trained horse doesn't buck...not because you have trained it not too, but because you have trained it not to want to
. Those are two different things. Just because a horse doesn't buck doesn't mean it won't, and a fully and properly trained horse won't. You don't have to "catch" a properly trained horse, and it doesn't kick, bite, charge, or any other such nonsense.
Again, that doesn't mean a person is not capable of training their own horse. But in many cases behaviors are only partitially modified and as a result issues will pop up months or years later.
One other thing to note - just because a "professional" trainer trains your horse, it doesn't mean it is properly trained. Slome trainers are just plain lousy trainers that don't know what they are doing. Others are handicapped by an owner's limited budget and have to take training shortcuts to save time, and don't take enough time or take the proper steps to train a horse properly - just enough to get it to (at the moment) do what it is supposed to do. Proper
training takes a lot of time and a lot of patience. Professional trainers should be given sufficient time to do their job right and not be rushed into taking shortcuts...