I'm wondering if their thesis if off: is this due to where uber is rather than cost Ie - suburban to exburban uber is just expensive and rare, (low coverage),

I'm wondering if their thesis if off: is this due to where uber is rather than cost Ie - suburban to exburban uber is just expensive and rare, (low coverage), and therefore people are more likely to drunk drive. I mean, how many taxis to start with are there in small suburban towns?