as for hockey, it is a lot harder to get the necessary leverage to do real damage. Cuts, teeth, etc... are a bit short of "Concussion." I don't think the % of mashed brains comes anywhere near what the NFL has. As for soccer, there's a concern about heading, and there is efforts to address it.
I'm just saying I don't enjoy football as much as I did a while back. I'm not saying you can't choose that lifestyle. But I gave up watching boxing back in the 80s, and never watch UFC. Football is getting that way for me.