I can almost agree with the no touch theory. I know people touch horses way more than horses want to be touched. I winch when I see people give those pats of praise that about knock the horse over.
I have two yearling that I never give treats to. They are all over me. I try not to pet them. They crowd, nuzzle, walk across the pasture to see what I am doing. They drag my lead rope, bucket, brush or what ever around. They get in and out of the trailer, tack room or barn office if the door is even cracked. I am usually trying to chase them off. They act like spoiled brats but I have done nothing to reward their invasive behavior. I think I need to take them to the round pen and teach them some respect. They do not have it now. I have to whop them on the back with a feed sack to get them out of the barn office when they invite them selves in. Perhaps they want a cup of coffee?