As someone who travels with someone who is either in a wheelchair or using a walker, you should probably be more sensitive towards others whose physical problems aren't as visibly obvious as your loved one's are. Look up any of the many "hidden disabilities" threads. There's a long list of possibilities, chief among them is not being able to walk long distances without debilitating knee/leg/hip/back pain. Someone like this would have no difficulty transfering, would seem to walk fine, and would have no apparent difficulty with moving walkways, etc. But get them to try to walk more than a mile in a day and they can't walk anymore, or are wracked with terrible pain that Rush Limbaugh's medicine cabinet couldn't cure, etc.
And no, I have no experience with this in my personal life. But as a professional who treats patients with brain trauma (and who don't outwardly look any different than anyone else), I can think of numerous people who, if they took a trip to Disney, an
ECV would mean the difference between spending 4 days in the parks having fun with their families and having to wait by the pool and wait for the family to come back telling the person all the fun they missed.
I don't want to get sarcastic or angry about this. Just
please don't assume you know that people are "just fine" because they do not exhibit the same outward symptoms as your loved one.