In the early 20th century, warehouse pickers at the Montgomery Ward mail order company wore roller skates to get around their warehouse quickly:

https://www.leanblog.org/2006/11/old-timey-roller-skate-prod...

I think roller skates are an underrated mode of transportation, but there is a learning curve for people new to skating. If these Moonwalkers are easy to use with no prior experience, I think that's a big step (or roll) forward.