They're all I use and the only issues that sometimes crop up are age checks, which a lot of places have solved with the option to remotely approve. It's so much faster as even a small shop can fit many more of these machines in than human-manned tills. This is in England though, while the article seems to talk mostly about US chains.

The article even says that most people actually prefer using them, and that usage has increased, but most have also had issues. I doesn't say how often they've had issues though. Having a machine be a bit wonky once doesn't put people off them forever, as the stat implies.

There's some weird assumptions being made in this.