uber has never proved the non taxi model is actually self sustaining. They paid really high wages at the start for low fares by burning through investment capital with the promise they will corner the taxi market and repay investors with a monopoly.

At the rates and fares they’re collecting its actually not possible to maintain the kind of fleet they need. When investors and drivers stop volunteering their money and cars to support uber its not clear the whole thing will stand up on its own. Grocery/restaurant delivery is for sure a heavy ongoing loss in the industry.