Probably true for humanity in general, but I would hate having a doorman and having to greet them every time I enter and leave. I've been in airbnbs where I had to do it, and I didn't like it. Same with the article's QR codes ... for an introvert, not interacting with the wait staff is great. Knowing that my order / payment is done precisely without fear of miscommunication is great. I don't need the hospitality.