I remember reading a book early in my riding career about folks who did not adhere to the "norms" or what a riding/training session had been historically defined as.
It was one of those things that I didn't realize how much it would influence me until much later, ironically when riding on remote ranches. It was only then I began realizing how many different "jobs" you had to do in one "session" with a horse, frequently due to circumstances out of your control. Such as while checking the water at the ponds, realizing the calves had found a hole in the fence and were now out exploring, so the initial ride evolved into a 2-mile detour and several hour adventure to get all the critters back to where they belonged.