You miserable old Toad you!!
The Peaks don't belong to us cavers, (Unfortunately!) I'ts a massive outdoor playground for all to enjoy whatever you're into, Be it Caving, Mining, Climbing, Mountain Biking, Road Biking, Hill-Walking, Scrambling, Hang-gliding, Para-gliding, Orienteering, Fell running, Having a peek in the show caves/girls showers, Whatever blows your frock up really! I've tried geo-caching while out hill-walking a couple of times and while it's not for me I have seen a few kids tearing around the hills with their mates and getting quite excited about finding their next find! I think it's a great way for the wee ones to let off some steam! Camping with pals and going on a treasure hunt sounds like fun to me (even at 38!) Got to be better than letting them play on them, x-box station things all weekend.
I'm all for geo-caching as a bit of fun while out and about but will draw the line at placing them in or near cave entrances. Thats just plain daft