If nobody tipped, restaurants and services like DoorDash would be forced to pay employees more or nobody would take the job. Yet, we've made it into a cultural

If nobody tipped, restaurants and services like DoorDash would be forced to pay employees more or nobody would take the job. Yet, we've made it into a cultural thing, so employers have dropped wages (and gotten legal protection for doing so) accordingly. That being said, I think asking for a tip before a service has been rendered is really weird and really screws up whatever sense there was in tipping. I find it increasingly hard to tip for things like DoorDash because I'm already charged directly for the service separately from the product, so that signals to me that the person is already getting paid. I don't tip my package/mail delivery person, so why should I tip my food delivery person?