I have zero qualms going by myself, the freedom it presents is lovely. And traveling and dining alone is not a bother to me either. I bring a book, people watch, THINK. Very peaceful.
That being said, having someone along is nice, too. As my son has grown up (he's nearly 18) the last few years have really been delightful sharing the experience with him. He's been going to the theater since he was 5 - and I'm a director, so he has ALWAYS seen lots of live shows. But now, I don't have to pick "kid friendly" shows. He and I have great conversations about what we see, and often have the same taste. He laughed at me when I broke down and got Spongebob tix (he still refused to go) and hated it. He usually willing to try things he is unfamiliar with, and I daresay,the music he most listens to is showtunes.
I use to go with my sister quite a bit, but it was always up to me - and I felt responsible for her enjoyment. When I go with other theater friends, that doesn't happen.
If we're not having fun, then why are we doing it?
These are DISCUSSION boards, not mutual admiration boards. Discussion only occurs when we are willing to hear what others are thinking, regardless of whether it is alignment to our own thoughts.