A couple weeks ago I planned a shopping trip to Target with a greeter and Minnie because Minnie liked my backpack, I danced with Buzz Lightyear, and had a 5 minute conversation with Winnie the Pooh.
I was at Crystal Palace for breakfast, and told the first attendant that came over that it was really ok if they bypassed me. I'm 28, I was alone, I've met the characters before so it wasn't a big deal. She seemed to feel bad, like she thought I was thinking because I was alone and older I didn't deserve to meet them. Eeyore waved as he went past with her. I went up to get more food and Pooh must have passed my table during the time I was away. He finished the row of tables, then came back alone, pulled out the chair across from me and sat down. He put his head on his hand and watched me for a minute, so I just started copying him. We played like that for a bit until he put his hand in his mouth. We then proceeded to have a solid conversation, about how my food was, that it was my last day and he was sad I was leaving. I had a couple adults watching me like I was crazy but they're the last people I care about.
So no, they don't mind.