We have always had a family rule on vacation and that was eat whatever you want whenever you want! We skipped dinner one night and all shared a kitchen sink (a huge sundae) at Beaches and Cream....I think that's two of your worries right there....sharing and skipping a nutritional meal LOL
If you think strollers are bad you should should see DS and I try to get DH's Wheelchair in and out of everywhere. He liked his own instead of renting one.
I think they have those tiny sized bubble containers in the toy stores now that blow the really small, tiny, tiny bubbles, maybe those would be better.
Have fun, I wouldn't worry at all!