I just can't fathom how anyone who has played the game, even at a High School level can expect a defensive player making a tackle to stop and decide where to make the hit, or imply they are purposely hitting an area to injure. Even at the speed of a HS game, your focus is on making the tackle, on a guy who is trying to prevent you from tackling. You use technique as best you can, but it is 95% instinct and trying to make the hardest hit you can, so that you successfully make knock the ball carrier down.
To think that this perfect scenario ever exists where you have the time to think thourgh and execute a form tackle on a guy who isn't trying to escape your hit is ridiculous.
If you take away the high hit, you get more low hits, thats just the way it is.