that idea isnt that bad at all, i mean there are alot of players out there who take adventage of the whole worm eating thing and only get depression of it. but instead of killing themself if they get depressed, they actually try to harm themself like cutting their arms, legs which can be done with a knife, a sharp object like a screwdriver or even their fingernails. that way people actually trying not getting depressed because they know if they go further down the hills they might hurt themself in the middle of a zombie chase xD
and in my opinion killing themself is quiet harsh to be honest. and i believe hurt themself is good enough to scare some people of that whole exploid.
but now that im thinking of it they might gain medical skills if they intended to getting depressed so they can hurt themself to apply first aid ._.