Weird is in the eye of the beholder. If you are in to the whole character thing, there would be no problem. Personally, as adults, we are not into character experiences when there are no children present. Breakfast at CRT would definitely not be my cup of tea. But dinner is a bit less "in your face" as far as the character interaction goes. So even if you feel awkward about characters visiting your adult-only table, you can still enjoy CRT for the atmosphere without feeling that you have to buy into the whole character thing.