I don't believe it has anything to do with age. I believe it is more about one's attitude and experience, this being especially true in the tween to 30's. It's more how comfortable a person is with themself and/or if they have fond memories of the experience at an earlier age. If someone is shy, feels uncomfortable around others, or worries how others will view them, they will not enjoy the ride. If they understand the experience is all about having fun, sharing experiences with others they know, are out to live life to the fullest with little consideration of how others view them, and have decided to let the kid in them loose, the will love the ride forever.