.........what?
Are you saying the ability to run into someone at full speed and damage them without getting damaged yourself is a requirement for surviving evolution?
do you think stallions play pattycake to determine who gets to breed? No, they tussle...which often involves alot of chest bumping
Horse bumping is just fine. A high speed hit from destrier or heavier horse is going to make tincans very concerned about you. I can already 1shot peasants with 1 solid bump. I regularly TK allies in medium armor because they like to circle dance around enemies I'm trying to help them with.