I recently did a thread on how my horse is hard to catch. I learned that you sometimes have to just be around your horse, so it doesn't associate you with hoof picking, and other such boring experiences.
I was wandering: do horses enjoy being trained, ridden, led and so on?
So do, some don't!
My horse wants to come with me when I go get him out of the paddock. And when I put him in there, he doesn't want me to leave! But mostly I think he doesn't like being alone, however, he will leave his paddock mates and even his hay to follow me. It's kind of a hassle to get him because there are three other horses who are trying to get out at the same time so we have this system where I go to one gate and all the horses come there because that's the gate where they are usually put out. My horse hangs back and I walk around to a different gate, bring him through while the other three are still waiting at the main gate. He caught onto that game in no time, but the others are still a little clueless, lol.
I think he's kind of a people horse though. He doesn't fit in a herd very well. And yes, I spend lots of time with him even when I'm not going to ride him. Sometimes I have a treat, sometimes not. But I usually give him something after he's done working. So he knows he'll get something from me eventually :)
As for the work itself, he definitely enjoys it. When we go a few days without riding or lunging, he can't wait to get going. I've taken him out into the arena on a lunge line and he immediately started going around without me giving him any cues. He couldn't wait. And once, the lunge line snap let go while he was trotting around and he just kept trotting in a perfect circle even though he was no longer attached. It was pretty funny.
In the end, each horse has its own personality and some are more engaged, while some are more aloof, some are happier around people, some (most) around horses, some like to work hard physically and mentally and some would rather sleep. It's hard to generalize.