I suspect the parent was referring to mopeds like this $1k 50cc RTX. I see plenty of Vespas, but I don't think I've ever seen this style of moped in the US:
https://www.redfoxpowersports.com/50cc-upgrade-rtx-scooter-m...
https://www.redfoxpowersports.com/50cc-upgrade-rtx-scooter-m...