As a 42 year old that plays with a group ranging from the mid 30's to mid 50's I feel pretty secure in saying the 'casual' gamer is NOT limited to any one age group. My perspective on this is that the 'pro's' and Bungie created this situation by making the skill curve at end game so steep that the non-pro feels there is no other option than to attempt to glitch. Seriously it goes from feeling Godlike on patrol to oh look I got one shotted by a thrull again. Most of the adults I play with have jobs, wives, and kids, which translates to limited play time. They are just now hitting the 27-28 lvl range and looking at Nightfall and VoG but when as a group of three a nightfall run takes over an hour to get past the first real room due to repeated wipes they tend to give up or look for alternatives because they can't spend more time than that in one chunk on 'just a game'. Like the original poster we'd all like to actively play the game and not just exploit or glitch our way into better gear, but the game design is set up to make that a very tempting path in the hopes that MAYBE that next gun or piece of armor means we wont wipe when the 3 wizards start spamming buffed arc bombs on us.