It's Disney World, and it is casual almost everywhere. They sell Crocs in kiosks every three feet (honestly you can't sneeze without hitting a kiosk of them), and they expect people to wear them, so don't worry about it. I wouldn't wear them to Victoria and Albert's (or any of the few restaurants with a jacket and tie dress code) but that's about it.
I've worn them on my last two trips for 8 days each, and wore them everywhere, all day (and half the night). No blisters, no hotspots...just let them try and get them away from me!
Absolutely...wear then wherever! I prefer to see those than flip flops and hairy toes! Actually, that doesn't really bother me either...but really, crocs are nicer than some of the other ratty footwear I have seen!
Why would you want to change? That would mean either you carry the extra shoes or go back to the room and change. Seriously, it is a theme park and just about anything goes! Just look at some of the getups you see there!!!!!
Due to foot issues the past several months that's all I can wear. I have all different colors. They may not look that great with certain attire but at least they'll match my outfits. Comfort has to be more important then vanity. Afterall peoples opinions will come and go but feet comfort will effect you all the time.
As far as I'm concerned, Crocs are okay anywhere it says resort or business casual. I know this because last Friday, I took business casual to a new level and wore my new celery green ones to work with nice slacks and a blouse. . .