Probably no amount.
We aren’t crazy wealthy, but we have enough equity in a high value real estate market that if we sold our house and moved to many places I’m the world we could live well without being required to work. As a result we have asked ourselves many times: “where would we go and what would we do?” And don’t have a better place then we are (near both our families) or our current jobs. Our kids are in school, so traveling is limited, since we don’t want to make home schooling our job.
The only thing I wish we could afford is first class airfare when we do fly once a year or so, but I wouldn’t call that life changing.
Ironically, doordash had “you don’t need to tip, we charge the fee to pay a living wage!” as it’s original way to differentiate itself from you having The Pizza guy deliver.
Back in beta there was no tip option.
I stopped using them when they started to have separate tips for the in house staff and the driver, plus a 20% fee. Turns out your can pick up your own hot food faster for much less money.