I worked for a company called “waiters on wheels” in the Bay Area…essentially door dash before cell phones and the internet. We used handheld radios.
We got minimum wage + tips, and our salaries didn’t pay for gas and car upkeep so we survived or perished based on tipping. It’s hard, thankless work only to be at the whim of your customers mood for your livelihood.
Worse, you pay taxes as if you are tipped 15% on all orders, but the average tip was closer to 8% when you count non-tippers.
Back then, stoners were the worst. Usually paying at least partially in change, rarely a tip at all, maybe an offer of a bong hit for a tip at best.

If you hire a service to deliver, remember there’s an actual person between you and them, and you only hurt the person by not tipping, not the company. If the order is screwed up, it’s unlikely to be their fault, they can only take what the restaurant gives them. Keep that in mind, service people deserve to be paid for their work, and the tip is part of their pay.

*internet

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