This whole tipping culture is reaaaallly hard trying to land here northern EU and I absolutely hate it, I refuse to tip anyone. Employers, pay your employees a living wage, it shouldnt be up to customers generosity. You cant? Then sounds like you should charge more of your customers, downsize your business until you can… or go out of business, since sounds like your profitable business is not actually profitable.
You don’t need a server for door dash. So instead of working in a restaurant they’re paying for their own cars to deliver to your house instead of your table.