When I was a kid were horses tougher? I didn't own a blanket for my horses until I started doing a spring clip job for showing. They looked like wooly mammoths, lived outside and were never cold.
Even now, I don't blanket my minis. (I have blankets for them for the 4 days a year that they shiver, but they take them off so I don't bother anymore). I blanket my 31 year old but only when it gets really cold or windy.
So just out of curiosity. If you have a healthy horse that isn't showing, do you blanket? Am I the weird one?