I've seen most of these odd wheels around, row bike and all. There's 2 guys on Penny Farthings doing regular rides around. One of them was a ride along marshal for the marathoners run day a couple weeks ago. One old guy had a low rider no crank contraption.
A 3 yo kid on a strider made the national news this week, on a BMX dirt track. Dad says he gets to accompany him around the track too.
That treadmill bike has twin boat anchor roller brakes for the lose lose. LOL.
Looking at commuter routes this week a couple times, there were fewer walmart BSOs than there used to be. Half were women.