In both cases, the products are marketed with explicit warnings about how not to use them, even though everyone knows that’s precisely the way pretty much every customer will use them.
For scooter riders here in Santa Monica, it means: Don’t you dare ride on the sidewalk, which is against the law, even though it sometimes feels super unsafe to ride next to cars. Or: Wink-wink, always wear a helmet. Also, the beach bike path is verboten, even though it is the smoothest, most fun, most scenic ride possible. And definitely don’t just dump your scooter in the middle of a busy path or sidewalk.