In terms of manners, there's not much difference. Either way, the horse just sees you as a nice, if animate, scratching post. They wouldn't DREAM of scratching or headbutting a higher ranking horse, but don't think twice about scratching on you. That should tell you something about your position on their 'herd'
Headbutting is usually attention seeking or 'get out of my way' action. Scratching is just thats - 'ooo, nice portable tree that follows me around. Very convinient
'
I never let ANY horse itch on me, and some have been quite affronted when they discoved they weren't allowed to. They quickly re-thought their herd postion and respect
However, I don't a have a problem with a horse
asking for a scratch. Brodie was the worlds worst scratching head-butter - his owner had let him away with it and then it became a serious problem (turned into nipping, barging and kicking) until she was terrified of him. When I took him on loan it was the first thing I sorted out. He really got a hard knock (seemingly self-inflicted from his point of veiw
) on the face and chased away a few times but quickly learn. Now, when he want's his face scratched, he asks. He comes and stands close (but not right in my face) and tilts his head to show the part he wants itched.
If i'm not paying attention he'll, very gentley, touch me with his muzzle and re-present the itchy part. However, with everyone, he just barges in and rubs