Not all wheelchairs require a full on wheelchair-accessible van. Many wheelchairs are also collapsible, and capable of being stowed away in a normal-sized trunk. Yet even people using those types of wheelchairs struggle with getting rides.

Both Uber and Lyft have been hit with a pretty steady stream of lawsuits around ADA compliance, and Lyft has an active settlement with the US Justice Department requiring frequent driver education as well as compliance reporting[1].

[1] https://www.engadget.com/lyft-settles-justice-department-dis...