I too am feeling some of this awkwardness about my upcoming trip. I don't have any problems at home eating out alone if I happen to be out & about. I've been to movies by myself before and it was fine. But I really want to do a character meal (or 2) and I'm not sure how I'll feel about that. Middle-age lady all by herself getting pictures with animated ducks.
I was excited about it until I mentioned it to a couple of people - one of them said, "How fun!" - that was the correct response. Later when I told someone else, he said, "That's a little weird." He saw how dismayed I was and immediately apologized but the damage was done and I'm second-guessing the character meals.