By measuring sufficiency of pay against the population of drivers you're not measuring anything useful. Intellectually indolent comments like this are overtly harmful to the people desperate enough to work for nearly half their cities minimum wage.
I'd prefer to interview everyone and get hard data about what people need and want. What they're sacrificing, what they have too much of, how their talents are being wasted etc. That's impossible though, so I took a shortcut*.
You have to have realistic choice to be able to deny such things. Desperate and hungry people don't have realistic choices.
I have no clue where to find that information about drivers in particular - if you do, you could look it up. But if you assume that they represent at least the general population, you could count on a sizable portion of drivers needing it.
It might not even be housing: If you can't pay your water bill, the water company will shut you off and threaten to report you to social services if it isn't on very quickly (and then take longer than that to turn it on). Kids can get taken for electricity or a number of things.