Well, I find it fairly rude, as I treat everyone of all ages the same (have a few years in retail work). But my point was not that, it was that when I'm kilted I'm no longer a menace to society, just some crazy nut. For example, two people I see on my mornign walk to school (as in 4 days a week, for the past 2 years) give me either an absolutely shocked gaze or completely ignore me when I'm kilted (compared to a nod or a polite hello on bifurcated days).