I'm going to expand on my experiences.

While I was in Ireland, the Rugby World Cup was going on. I LOVE rugby, and tried to watch as many matches as possible. When the Scotland v. Argentina game came on, I put on my kilt and Scotland rugby shirt and went to the pub. Lots of mixed reactions. The old Irish guys loved that an American was wearing a kilt. The young Irish guys didn't. Some of the Scots at the pub (also kilted) were divided. On one hand, they liked to see the support for their team. On the other hand, I think a few of them resented the fact that I was American.

Other times when I wore the kilt out was similar. Some people really liked it. Others, learning that I wasn't from Scotland, weren't as enthusiastic.