I actually did see someone complaining on another mailing list that the debit-card-swipers in the grocery were too high for her. I don't know if she meant a wheelchair or if she is a dwarf/midget.
Some people just like to complain. Her problem is easily solved by asking the clerk to swipe her card. They will do that - no problem.
So - next she will insist that everything in the store should be on low shelves for easy access.
There are so many things in life that are a burden, but there are still a lot of decent, good people who are willing to lend a hand. All you have to do is ask.