The following submission statement was provided by /u/Loki-L:

In theory this is just an extension of stuff already seen elsewhere like self service checkouts and remotely operated checkouts.

However Japanese culture adds another dimension to this.

There is also the fact, that attempts to remote in-person work in stores in places like the US has resulted in the work being done in countries with very low wages for a few cents per hours.

There aren't too many low wage countries full of people who speak Japanese, so these jobs are more likely to stay in Japan. The article mentions making use of workforce that otherwise could not easily work in person due to disabilities etc. It remains to be seen how true that turns out to be.

Please reply to OP's comment here: https://old.reddit.com/r/Futurology/comments/z7nbcv/japanese_convenience_store_opens_outlet_staffed/iy7dn3d/