I've never had anyone in a session or singaround suggest it was inappropriate for me to sing just what I like.

Too right, Ruth. In my 30+ years of singarounds I've never once encountered any sort exclusivity at all; on the contrary, the policy is always the more the merrier, whatever nationality the singer. One memorable night we had a whole Kiwi rugby team in at The Colpitts in Durham, all of them intent on singing. Did any of our hearty English folkies raise any objection? I'll say not! Inclusive to a fault, and proudly so...