Just call the "Human Uber" service instead, which will come with a pair of hands. I doubt that's more than 5% of their market, so it justifies having a differentiated price for the extra help you get.

I can't see why they're can't be a uber human driver option or you can simply ask from a cart boy to help with groceries.

Heck, with amazon groceries and other similar services, why do they even need to go to the store?