I'll tell you my experience ...

I walked into work the other day in my kilt. (I was carrying my work clothes in my arms and changed before I clocked in.) I work in an arcade and the people I work with are like 20-27. The guy who trained me, the assistant manager, saw me and asked why I was wearing a kilt. I just explained that kilts are all I wear. He was surprisingly accepting of that. I bumped into him at the movies the other day and we talked briefly. It would seem that the kilt had no real effect on how he treats me.

I wear a tartan Black Stewart kilt though. With more modern Utilikilts, you could just call it what it is and say they're the rage in Seattle (isn't that where they're from?). Modern heritage, really. Kinda like those jet black kilts people use in weddings. I guess it's a convenient way to avoid the contraversy of the warring clans represented by tartans.

My advice is not to let anyone make you feel like less for what you do, no matter their tone or authority.