There's a lot of debate on what is considered victimless. Yes, if you don't wear your seatbelt for example, the only one possible hurt is you. Not making your child wear a seatbelt is different. The child is a victim if an accident occurs.
Urination and defecation in public by many is considered a victimless crime, but unsanitary conditions promote the spread of disease. There just isn't an immediately identifiable victim.
Now here is one I agree with: There is a state law against U-turns anywhere. I can see that one as victimless. Unless you cause an accident and kill someone else because you made a U-turn at the top of a blind hill. But there are remedies for that, no U-turn signs.
I see part of the problem is defining what is victimless.
RE: How do we change people's minds about victimless crimes?