Not that I can't see the "reasons" for banning tackle football in kids with the combination of a developing brain and concussions being amplified. But I'm surprised the push isn't in a different direction. The point I am going to make may lack scientific research to back it up, but here it goes.
My position about "football and concussions" has always been about "risk/reward" and how the safety equipment skews the calculus for the player. It is my opinion that a football player (namely a defensive player) with a helmet on will take risks with their body to hit the offensive player that they wouldn't take if they weren't wearing a helmet. One of the examples I always go back to, even though it wasn't a hit to the head, is the TJ Ward hit on Gronk that blew out his knee.
TJ Ward literally turns his body into a missile/projectile to make that hit. Would he be so willing to do that if he wasn't wearing a helmet? I would argue he wouldn't be.
So while my take may seem counter intuitive, I am of the opinion that the safety equipment (specifically the helmet) actually increases exponentially, the risks a defending player will take to layout that massive hit (and the sudden stop to the offensive player that comes with it which causes many of the concussions).
I grew up out of the country watching Rugby (Football was for a Monday morning in late January/Early February). While the game dynamics are different (i.e. yards don't matter like they do in football and the defensive player is always in front of the offensive player is passing the ball backward) the hits are still there. There just aren't many "projectile" type hits to blindsided players because, in part there aren't helmets and the "protection" they give the defender.
The majority of rugby injuries are spinal cord injuries (from the scrum collapsing on the Hooker)...that isn't to say there aren't concussions, but they are a lesser issue.
If it were me I would
1. Get rid of helmets thus leading to less "riskier" projectile hits (because now the defender will feel it too).
2. Spend time truly, truly, truly (did I mention truly) teaching proper, fundamental tackling which would teach you not to either A, use your head as a weapon or B, aim for the head.
Something is going to have to give if football is going to live into the future. Maybe a return to more "basic roots" could help that.
Just my 2, potentially sacrilege, cents.