Unsupported area?? – Waze Carpool Review

I don’t know where’s this carpool app is supported...I just travel thru 3 different states and each time I try to use the carpool app, I get a “unsupported area”screen pop up. I like the concept of carpooling while sharing cost but If i can’t use it in major big cities, what’s the point?
Review by Missmise on Waze Carpool.