Also I think for the vast majority of people, education is enough and beyond that people are generally able to get on with life and one another without too many problems. I had a student last year who was wearing a Hitler t-shirt done in a faux Warhol style. Personally I found it quite odd, but also rather funny and commented as much to the student. Apparently his Dad had told him to destroy it by the end of the day and in turn I was offered the t-shirt. I politely declined. It wasn't really my style and plus my student days of sartorial rebellion were long gone. And so the funky Hitler fad never really caught on.

Basically the point of that story is that through our social connections we typically know where the lines are. Personally, I think there should be no lines, but I wear nothing but jackets and button shirts which look very dull. My students Dad thinks there should be lines and told his son as much. The son despite his bravery was forced to compromise due to the expectations and demands of others. You don't really need laws telling you what to do as we all exist quite fine without them.