Why was profanity allowed in the Fourth parade?

I will keep this short and to the point. How is it at all possible that for the Fourth of July parade in Sandpoint was it allowable for a person to be carrying a sign that clearly included the "F" word.

It is the right of an American to voice an opinion, but the allowance of this trash, vulgarity and pure stupidity is mystifying to me.

Express yourself, but not in a manner that is so wildly inappropriate for the audience the majority of which where children. It is my great hope that this only damaged the efforts of this group. Trash is trash … not a "right" to express yourself.

LARS MELLANDER

Sandpoint