I know that Instacart/Postmates/etc. exist, are convenient, and are used by some people. I'm just skeptical that this is Uber's plan for "superior returns." I'm

I know that Instacart/Postmates/etc. exist, are convenient, and are used by some people. I'm just skeptical that this is Uber's plan for "superior returns." I'm skeptical that driving bouquets and salads and clothes around town will be significantly more profitable than driving passengers.