More years ago than I care to remember, I designed and self published a game
I see what you mean. From the link...
Game of the Second Boer War commencing October, 1899.
To sidewalk, you move the left foot to the left, or the right foot to the right, then the other foot follows. Repeat.
Don't need a lab to work that out.
How that's supposed to help the cities in the future? Perhaps because they'll be really crowded with little space to move.
I have also had to replace several in much less time than they were supposed to last, so perhaps they're working better for some homes than for others.
I wonder if it could be more to do with how often they're switched on/off. Looking at the other comment branch describing good experiences, it looks like they often leave those lights on for long periods of time.
Aren't you glad you're not getting all the government you pay for now?