Taking some quotes from the other thread…
I might quibble with that. Taking up a musical instrument doesn’t confer ethnicity. I’m sure kswiss’s brother is a great guy and it’s wonderful that he’s interested in his heritage but I would say that being ethnically Scottish requires something more than putting on a kilt and marching around with bagpipes (an activity that approximately 99.99% of Scots will never do). Obviously there’s an ancestry factor here as well but I would tentatively say that if the ancestry by itself isn’t close enough to confer ethnicity, putting on a costume won’t make up the difference.