Yes! Well, I don't know if it is particular only to the USA, but.. that is one of the freedoms I gained when I moved to Norway. Perfectly acceptable to go see music in a bar by myself, or to any social function, etc. - and I don't feel out of place doing it. Nor do I get hassled about being a female walking to/from home during the night after going to the same places.

Doing the same things in the states, you feel the aloneness more and it is much more rare for folks to do.

Eh I don't know. When I was in Paris, going to concerts alone was fine but the days when my friends were there to chat and interact with me we're far more happy and full.

can you clarify? Do you mean enjoyment of going alone, or others questioning you for your lack of compatriots?