I have a friend who decided he could live without a car in Phoenix, so he started ordering takeout from UberEats or GrubHub all the time and it got out of hand for him pretty quickly,
I guess the scenarios where ordering McDonalds via UberEats would make sense would be if you are disabled, elderly, have a shit ton of DUIs, if you are a kid with your parent's credit card, you want to impress your findom mistress, or if you are a feeder with a busy schedule.