I'm 23 and mine is fully natural, mainly cause I just couldn't be bothered to go to the effort of trimming it, especially when very few people will end up seeing it anyway (never been fully nude around anyone) as for facial and chest hair thats different, hate that and want a fully smooth face and chest, don't shave my chest at the moment because I want/need to lose weight and get at least a flat stomach (if I can) then if I somehow manage that I'll get rid of chest hair (don't have too much at the moment anyway)