[QUOTE=hrsmstr;5802026]
Putting on my flame retardent suit:
The peanut rolling fad in Western Equitation is so that people can ride horses that move and look like mules, without actually riding a mule. (no offense meant to mules, who move that way because they’re made that way)…
:lol:[/QUOTE]
:lol: You must be looking at either different mules or different WP peanut rollers than I am, because the good mules I know are nice forward movers with true gaits and a reasonable headset for their builds. I wouldn’t like them so much if they resembled that particular WP fad! Not to mention can you imagine how long it would take to get down a trail at the trope? 
OP, I live in cowboy country and most of them don’t want an artificially low headset. QHs do have a much lower headset naturally than your average English riding horse, so that probably accounts for a lot of it. You might be comparing them to how they look running in the pasture, but remember too that most average horses will have their heads up, be on their forehands and strung out while running in the pasture…not exactly what you want to ride! When you get any horse relaxed and working from their hindquarters, their heads will drop naturally. The degree just depends on their conformation.
Not to mention, even in the show ring they take into account the horse’s build. Watch an Arabian WP class sometime and you’ll see that they absolutely don’t have the flat neck and super low headset you’ll see in QH classes. The head is still lower than, say, a saddleseat horse, but it comes up out of the shoulders and has an arch to it.
I know some people do try to force a low headset as a way to dominate the animal or whatever, but they’re ignorant or poor horsemen or both. They shouldn’t be used to judge an entire style of riding, especially one as diverse as western.