Originally Posted by bucksfan2
To play devils advocate should every tackle be legal such as the face mask tackle?
To play devils devils advocate, did they wear shirts in the nascent days of football?
Unless the wear of shirts is an "add-on" like facemasks (and to some degree helmets even), I see no reason to change the rules regarding collar tackles now.
Why stop there? Tackling at the knees tends to lead to more knee injuries. Tackling high tends to lead to more head, neck, and spine injuries. Let's just require the tackler to run alongside the ball carrier and grab them gently at the waist while applying negative acceleration until they both near zero velocity. At that point the tackler could ask, kindly of course, for the ball carrier to take a knee. Should he refuse, the tackler must then drag him to the nearest sidelines and force him out of bounds, lest anyone risk the injury of colliding with the ground. I bet it would speed up the game too.