I would agree with you except most of our passengers can walk, sometimes they even have multiple amounts of able bodied family members with them who choose to utilize our services. The people who really do need a wheelchair and are disabled or in severe need of our services have their own devices or walkers ect... Also often are not alone because they are unable to take care of themselves, usually family takes care of them. Some people take advantage of our service so they can skip the line at security when they are running late, and to preboard. So overall I would say only 5% of my passengers are really disabled and in desperate need of my assistance.
Also you mention that they live on disability or social security, well in the case of working in the airport most of our passengers are coming home from a trip to vegas, or their summer home in florida where they spent the last six months. Many tell us of their traveling stories or the multiple cruises they just came back from, so I would say most of our travelers are financially stable. When we pull the baggage off the carousel, they will joke and tell us "those two bags are just stuff I bought while I was in Hawaii the past three months", And i do hope those that are elderly or on social security choose to tip the waitress when they go out to eat! Afterall they chose to go out, the sameway 95% of our passengers chose to go on vacation.