Whenever people see old systems still in production (say things that are over 30 years old) the assumption is that management refused to fund the replacement. But if you look at replacement projects so many of them are such dismal failures that's management's reluctance to engage in fixing stuff is understandable.
From the outside, decline always looks like a choice, because the exact form the decline takes was chosen. The issue is that all the choices are bad.
Isn't that how self checkout happens in every part of the world that has self checkout? I'm failing to see what's special about self checkout in Japan.
The staff will also instantly materialize if they are needed to confirm you can buy alcohol, or there is some kind of problem; which is also not my experience elsewhere.
It's not a worldshattering difference, but it is noticeable.
I love trader joes, don't get me wrong, but I wouldn't be happy if it was the only grocery store I had access to. For me it's an awesome second-in-line grocery store, more like a specialty grocery than a main grocery.