Thanks for the warning. We've never dealt with wheelchairs at the airport, but her walking has declined since she flew last year and she's worried about it.
We have used a scooter on a cruise before and honestly, if my son hadn't been there, it would have been a problem. We had a lot of trouble driving it into her room, but he could just whip it right in there. They are such a pain though as far as finding a place to park when eating, going to shows, etc. But, it did help her to be able to do more things on the ship I think. She also took it off the ship at a couple of the ports. Again, kind of a pain getting on and off the ship, but overall worth it I guess.