I hear ya (no pun intended). I warn kids of the dangers of blasting one’s ears out. If you make your case compellingly, they’ll take note. Also, I warn this computer generation of kids “PAY ATTENTION TO YOUR POSTURE WHILE SITTING!!”. This age of 24/7 computer use is destroying lots of backs, too!
Posture is definitely another of my ridiculous concerns, as well. I can’t count the times that my children have told me, “No one cares about posture today. You are the ONLY parent who gets upset about it.” LOL