This is a point of view from someone who can afford alternatives. Taxis have long been the transport of last resort for the destitute/homeless and with Uber replacing taxis this does become a serious issue for many.
The ADA requires 'paratransit' service for persons whose disabilities prevent them from using accessible, non-commuter, fixed route bus service. In many cities paratransit is handed off to taxi services.
Imagine thinking you need Uber to live your life...