An 18 year old, that went to Spring Break in Costa Rica with parents, snorkeled with guides that encouraged him to "Ride the Giant Sea Turtle" and "Grab Pufferfish so they puff up".
My daughter and I asked him about not abusing Sea Life and he said, "I know but I wasn't going to miss that opportunity".
After we got done talking to him, he will not harass Sea Life again, but this kind of social change requires observing it happened, talking about it, JUDGING the public nuisances within an inch of their lives, and getting the best message out to the public consistently.
Judge me judgmental, I can take it!