I remember when Segways came out, and I thought "This is stupid." Outside of airport and mall security, they are nary to be found.
When e-scooter-shares came out, I thought "This is stupid."
In the last several years, I've been to dozens of cities. Never saw anyone taking an e-scooter.
Haven't heard anything about Uber's 'self-driving' cars recently. Another total was of money.