The canon explanation for these is that this is some small town circa 2031 where some robots are just as common sights on the streets as people. Mainly humanoids, as the other more practical kinds are almost always out of sight. For example, some are just telepresence bots where humans are steering them from afar. Others are autonomous and have been sent out for some task or another, like picking up a tub of ice cream. Others more are agents of autonomous delivery/service vehicles. And then some are just social droids, like the one in the bottommost image that's hanging out with a small group of people.
I personally adore the clashing aesthetics of ultramodern robots and quaint, largely unchanged old towns. For whatever reason, it "sells" me on the idea of robots as being parts of these worlds more.