This reminds me of the croc feedings a few years ago. Local boys were charging tourists to watch them feed crocs some chicken. I believe it stopped after there was both education and enforcement. Tourists can be foolish but locals show them where they can be the MOST foolish...
Again, it stopped (or did it?) with education and enforcement.
I give so much credit to the guide association for really making it clear to their members that long term economic stability come from protection of resources