I had one horse for 5 years, and have owned since birth. Due to conformation problems in her legs, she's spent the better half of the last 3 years off due to repetitive tendon sheath injuries. She's my baby and I could never sell her, so she lives in a blissful state of partial retirement and I bought a 2 year old three years ago to be my main riding horse.
"Abuse" the training? That has to be the most ridiculous statement I have ever heard. The very idea that a horse is "upset" by not being ridden makes me almost hysterical. Yes, SOME horses prefer a job, but the vast majority of horses are PLENTY happy being allowed to wallow in knee high grass with their friends, and only being brought in for some treats and a brushing.
I had a friend recently ask me if I thought she "neglected" her horse because she's so busy with work and school, she can only ride a couple times a week now. This horse is SO pampered and spoiled, the very idea that you could POSSIBLY "abuse or neglect" a horse just because you don't ride him is absolutely ludicrous.
With all the ACTUALLY abused and neglected horse in this world, I tip my hat to ANY kind soul who fills their pastures with pampered pets who are given absolutely every basic necessity and aren't asked for anything more then a kiss every now and then. I'm pretty sure that's just about any horse's version of equine heaven.