Another reason there are many wcs and ECVs is that WDW is really good about wanting to accommodate people with different needs. Thus, I'd guess that it attracts those people in greater percentages than other vacation destinations. In my book, that is a good thing, not a bad thing. So it's a positive thing if the percentage of people using some sort of mobility assistance is greater than what you'd see elsewhere.
And as I mentioned before, the internet educates people who in the past would have sat on a bench during their Disney vacation. So that's another addition to the crowd of wc/EVC users. And we have people with mobility restrictions who decide to retire to the WDW area bc it's so hc friendly. So there's even more people.
On the flip side, we have the alleged abusers. Setting aside people who play with the temporary transport wcs in the parking lot here and there, how many people are really renting for the heck of it, esp offsite? It's expensive: the 4 person group of alleged ECV abusers are adding ~$150/day on top of all the other expenses. It poses logistical challenges: witness all the questions posted on this board. And critically, there is no longer any incentive to using a wc or ECV even if you rent from the parks (which, by the way, have those lame 4 wheel ECVs that are not exactly joyrides). In fact, you may well wait longer with your EVC.
Finally, WDW specifically encourages people with limited mobility to rent a wc or ECV. You do not have to be disabled in the sense of qualifying for a hc permit to rent. Let's all recall the big to-do when DL switched over to the policy that WDW where there is no preferred access. Like WDW, if you can't do the distances or wait in the queues, you have to rent a wc or ECV and wait it out in the mainstream line. People were really mad bc they felt DL was stamping them as "disabled" but it did take away the special treatment, which can lead to abuse.
In short, no one can tell why another person is using a wc or ECV. The benefit/burden analysis of renting offsite or in the parks favors renting only if the positives outweigh the negatives. The positive side of the equation does not include special treatment, and if someone doesn't know that when they pay up and rent, they will find out soon enough. Anyone who's spent a day in a wc or fighting the crowds in an EVC where people play fun games like "cut off the ECV" knows it is no picnic, although it's well worth it if it's that or being miserable. WDW supports renting to assist with mobility even if the guest is not eligible for a placard.
More power to WDW for creating a destination that is so appealing to a wide variety of people. If someone is creating a dangerous situation, whether they are guests on foot playing high speed tag in a crowd or using a wc or ECV in a reckless fashion, WDW needs to deal with that. But that does NOT mean that all EVC users are fakers or that the increase in EVC users means there's an abuse problem.
OK, off my soapbox. I too will agree to disagree, but wanted to get that off my chest!
Cupcake