I recall seeing houses built in the last century where the chairs are hung on the wall - lest somebody use them in a fleshly way, to relax when there was work to be done. I think a lot of these people are actually insecure, and do not really know the fullness of the Biblical doctrine of blood atonement and salvation by grace. I admire somebody if they abstain from something out of a sincere conviction that it is wrong, but if they think that is how they are saved - they are wrong. I think this is at the heart of much of the Christian rock debate. Perhaps if they recapture some of the joy of their own youth, they will not be so quick to judge young people who genuinely enjoy their worship time with the Lord through Christian rock.
Stress is a killer, guys.
Even adults need the simple pleasure of play. I don't want to spoil it for you, but I will tell you that if you go around constantly looking for the worst in people, you will surely find it. Try looking for the good in people instead. I was once like you. Not on Christian rock - on innumerable other issues.