I don't have a problem with them riding around. Or used to fish. Some folks don't have boats. Why single them out and not allow to fish? Hate to blame all for the minority that trash things up. People in boats throw trash out too. I do agree helmets should be required. I can't see them having much negative impact on the actual fishing areas. In fact, I've caught lots of crappie in the trails of 4 wheelers thru grass beds!