One is either properly dressed, or one is not. Silence merely gives ascent to the validity of being poorly, sloppily, or badly dressed. The "rules" governing how to dress (kilted or not) are readily available for all to read, and abide by. That said, sometimes it is necessary to break the rule that says "a gentleman shouldn't have to tell a gentleman the things a gentleman ought to know" and speak out because, frankly, not everyone is a gentleman or knows all the rules.

If one has long years of experience wearing the kilt then speaking out can only enhance and improve the experiece of kilt wearing for others. So gentlemen, don't be bashfull-- if you see something that looks bad, or isn't socially appropriate, speak up. Don't be afraid to tell someone, "Hey laddie, it's time to pull up your socks and play by the rules of being well dressed".

It is better to try to warn someone off, then to remain silent and expose them to public ridicule.