Not sure how Uber works in Sweden but in Kenya you can call a number and give your location and destination and they will send an Uber to you and you can pay the driver in cash.
Alternatives to Uber exist in Europe, America etc, and for decades the main way to contact them was by phone. The other way was to walk into an office, which were often located near restaurants and bars. (And the final way was by waving at an empty vehicle in the street.)
These options still exist, but I don't think Uber wants this business.
These options still exist, but I don't think Uber wants this business.