And where will those places cook the food and store the products?

Perhaps in a physical location.

Once they have that physical location they could even let members of the public come in to enjoy their products, as they already have the building anyway.

Keyword “many”. Not all, and if you do find some data that can point to that direction, I can’t find anything concrete that points towards only 5-15% realistically could work without physical presence, I’ll gladly take it. Hell, remember the height of the pandemic measures, when only “essential” stuff was still running? That was still a shitton of people.

Your food needs a kitchen and a delivery pickup point. That point has to be decently close to all addresses that could be delivered to, or nobody would want to deliver, so that’s a bunch of physical kitchens already. Some of the point of restaurants is also the social gathering aspect, so you’re completely alienating a whole swathe of consumers - not everyone wants to eat alone at home.

Some business, or hell, even personal needs are not solved by signing up for yet another SaaS. Some companies have regulatory requirements/compliance. Others’ currently very simple operating costs would go through the roof doing so. My programmer, software architecture, security oriented mind also is screaming a little bit at the idea of a mom and pop bakery ran by two sextuagenarians now having to worry about keeping their Wordpress/WooCommerce up to date and secure. Why would I want to give my data and personal information to a bunch of random internet companies when I can have the same service without the data breach risk at the store down the road?

Many things are easier to source locally. Not everything is easy to find on the internet. Ever tried to find some odd screw for some obscure appliance by browsing pictures lol? Much easier to walk into my department store and physically compare. Another example, I was trying to find a Guitar Hero controller online. It ended up being much, much easier to find one at a decent price by looking up secondhand stores and thrift shops’ electronics sections - found one in a matter of a couple of visits for like $30. Online, I can’t find one under $120 right now.

Slightly off subject (or is it?), but I would also strongly push you to try and consume locally when possible rather than throwing even more money towards Amazon, Uber et al. Amazon in particular is an insane multinational-sized loss leader.

Right. That food needs to be produced in a physical location, made from ingredients produced and stored in physical locations. Anything you buy needs to be stored somewhere at least temporarily, and unless you plan on having deliveries made by people in their personal vehicles, the trucks that transport said goods need to be stored and maintained in physical locations too. I think you may be overestimating the number of businesses that are purely digital.

I work in an office section of a factory. How do you plan to build machines/systems the size of a small bus with "mobile solutions"?