Death sucks and it's boring. Who wants to die? You have to sit around for 10 min doing nothing, I usually step away from the comp for a bit while i recover.
I suggest that instead of dying you "run to your mommy" when you reach 0 health. When you reach your mommy you do a little dance and she hugs you and you are healed. You can then run back to what you were doing. This would be much shorter, and far less violent and disturbing than death. I think parents everywhere would like to see a change like this, reinforcing something postive like coming back to family when in need, instead of embracing death and destruction. Who knows you might even get more kid accounts signed up.