It's also tax deductible from the drivers earnings, so it's effectively cheaper.
If the driver has enough potential deductions for that to be better than the standard deduction (or with that low of income is sufficiently aware of alternative filing options) -- and even then quite a few miles are "effectively" not deducted since you're trading the standard deduction for those.
Business or self employment expenses are subtracted from revenue before computing income, so there is no relation here with itemizing or the standard deduction.
Yep, I messed up on that one -- forgot uber drivers aren't employees (in which case the standard deduction would ordinarily come into play unless the driver did something more exotic with their taxes). That was my own background slipping through in my answer.
I mean say it's $4/gal or $8/gal even. It doesn't change his point.