I can't remember the last time I paid anything in cash that wasn't my kids allowance. But on top of that Skip the Dishes ( I assume door dash too, but I used to drive for Skip so I can say them for sure) shows the driver how much they'll make on the delivery and if they don't like it they won't accept it. If I'm paying in cash then all they're being shown is the base distance rate and they'll all deny it.