There are so many ways to slice and dice those numbers. Drivers who already own a car they aren't going to get rid of would be paying a lot of those costs anyway (other than wear & tear and fuel). Taxes are all over the place; some pay 30%+, others nothing.
What it really comes down to is the ratio of cost of living for the driver to the amount they take home after buying gas. If I'm almost broke, want to buy more stuff than I can afford, and know I can get $100 worth of rides for $20 worth of gas in less than 2 days, the decision has already been made. As long as I have close to the same buying power, this will remain true.
It's a delicate balance, though, and when you're competing against people in more dire straits who maybe aren't as good at math, at a certain point it could become unviable.
What it really comes down to is the ratio of cost of living for the driver to the amount they take home after buying gas. If I'm almost broke, want to buy more stuff than I can afford, and know I can get $100 worth of rides for $20 worth of gas in less than 2 days, the decision has already been made. As long as I have close to the same buying power, this will remain true.
It's a delicate balance, though, and when you're competing against people in more dire straits who maybe aren't as good at math, at a certain point it could become unviable.