This may be an unpopular opinion, but I think friendly fire for cav bumps (+ knock down) should be enabled as well. Cav can do easy charges without having to think about their teammates (even as a teammate inf this is quite annoying though, as you get constantly pushed around and crucial strikes getting blocked by their fat ass horses).
May sound counterproductive for inf at first, but like that cav would have to play much more tactically and cautiously, instead of constant x pressing YOLO charges around the map.