Comment by madrox

I've never heard of the Doorman Fallacy before. I like it.

That said, not everything changes because some businessman wants to cut costs. Splitting bills has always been a pain, and while a lot of apps suck, at least it's consistent. I can't tell you how many times I got dirty looks from wait staff when asked to split a bill. In pretty much every story the author talks about I would rather fail forward than go backward.