We (collectively), will go to great expense for our "Fur kids". I mean everything from cute little sweaters, toys, etc all the way up to expensive medical care, and I'm going to complain about a small pet fee? Doesn't bother me. A ten cent raise in diesel price for the trip will cost me more!
Did you ever consider that the parks that don't have a pet charge just went ahead and rolled one into the price they charge everyone? So if your in a park the does charge extra, and you don't have a pet, think of it as a discount.
No, irresponsible pet owners bother me way more than a few dollars to have our dog included.
