Increasing the latency with which you respond to conditions seems like it comes with real downsides. They should just figure out a way to punish this practice.
Uber drivers have fair wages, considering they are working in a saturated market and competing with people with the qualifications of a 16 years old teen.
There are a lot of people with these qualifications.
I believe you have to be 18 to be an uber driver.
Correct. The 16 years old bit is for the driver license where, in north america, 16 is the minimal age to get it.
Maybe a delay before you can start driving after each log in encouraging drivers to stay signed in.