Uber was great until they introduced tipping, and somehow now we are supposed to tip employees for delivering stuff when the entire business model of the compan

Uber was great until they introduced tipping, and somehow now we are supposed to tip employees for delivering stuff when the entire business model of the company we are also paying is delivery?! Why are we supposed to tip door dash drivers, but not Amazon delivery drivers or FedEx/UPS/USPS? I refuse to use Door Dash due to the expectation of tipping their employees on top of the super high up-charges and service fee I'm paying FOR DELIVERY. Tipping has ruined this whole new batch of convenience services for me.