Re: "Or you could just ask someone to hold the door open" rather than have a power-assisted door. This is a huge issue on how disabilities are best accommodated. I think no one (in a chair or on foot) wants access to depend on the kindness of strangers. Universal design seems like the best idea, because curb cuts are chosen by most people crossing the street, ramps are accessible to people walking or rolling, and the power-assisted doors open for all. I like ramps better than stairs because my knees creak, and power-assisted doors are great when one is carrying packages. Also, America is getting older, and accommodations easing movement help that significant part of our audience. Everything that requires a chunk of money hurts, but I think we need ADA accommodations.