We are not making participation mandatory for Scouts or parents. In Scouting, there really isn't "skin in the game" unless you want to put it there.
Yes, this is it. When I had the reins of the Troop, we went camping every month, with two or three big events every summer... 50-miler backpacking trips, week-long beach adventures, 50-miler canoeing, 100+ mile cycling trips, etc. Now that I have pulled back a lot from the Troop, there is no one who is willing to put that much effort into the program. So, the numbers are dwindling.
Agree with you wholeheartedly... young men want adventure, not academics.