All delivery services so far, have been partial emulations of a concierge service including the high cost, but have made the user suffer thru the friction instead of the human concierge.

I don't see a way around this using mere technology. Either the service quality will have to be low, or the cost will have to be prohibitively high, or the people providing the service will have to be very poor.

We have solutions going back centuries that work. If you need more than an occasional concierge service you hire a chef as an employee. At some point it makes more sense to hire a part time chef than to pay enormous extra fees for giant shopping robots. Perhaps the economic decline from AI will make the idea of having house servants more acceptable to the very few people still having an income. Most strategies to replace high labor cost people with technology miss the point of long term permanent economic decline. We don't have a problem of too many financially successful people LOL if anything the problem is a severe lack of them.

Its kind of like cars. You have to unperson poor people who know how to drive if you want success with computer driven cars. This is the same concept but for hiring a servant to cook.

Also its very hard to scale royalty. If only the local equivalent of royalty can afford to pay to make the effort required to shop and cook and drive disappear, its going to be hard to dotcom scale that to billions of customers if there's only a couple multimillionaires who don't care about the price.

Trying to automate food shopping is like trying to go back to full service gas stations. Nobody wants it so its an uphill battle to sell.