Judging by a billboard that I pass reasonably frequently, Uber is more than happy to "help" potential drivers without cars get them and start driving for Uber [0]. In theory, the number of cars available to Uber is also only limited by the capital that can be pumped in.

I don't know if the prices are currently subsidized, but there's no reason they couldn't be.

[0] I'm assuming it's this program: https://www.uber.com/us/en/drive/vehicle-solutions/