Morally wrong to watch football? Oh my, but I should not be surprised, this is the internet...
I grew up as a child in the late 70's/early 80's, I know all about playing outside and getting injured. I also know a lot of family members suffering through knee replacements and the like due to high school football. I ran track and played high school football until I found out I had Sever's Disease. My Dr. at the time told me not to play football and save my knees. I took his advice and am sure glad I did.
And truth be told, the Bills have sucked for so long, I don't really watch too much live football. Fast forward on the DVR is about all I can stand these days with all the commercial breaks and other shenanigans.
But yeah, if I had kids, they would not be playing football, preferably they would be studying like I wound up doing. Challenging your brain will always trump challenging your body in the long run.