A question that I frequently ask when presented this is "what would you personally be willing to give up?" Of course it is important to realize that some of it is systemic and not within the average person's control (e.g. car-centric infrastructure)

Just boiling down and highlighting the key point in a "how will this personally affect me" sort of way.

But when the young man heard that saying, he went away sorrowful: for he had great possessions. (Matt 19:22)

It'd definitely be a tough choice, but I hope I'd be able to make it

Only a subset of food can be grown locally and that local food is only available seasonally. It’s the system we already have.

We're probably talking about different things, like "you can't grow almonds or citrus fruit locally". But humans can clearly survive on a local diet pretty much everywhere, it's just a question of population density. Your food staple would simply be what kind of calorie crop grows locally, plus vegetables and greenhouses for exotic fruit.

And yeah, all of this is a social solution through and though. Like you'd want to encourage people to help plant and harvest. But this might differ from of community to community. Some might want to use more automation with robotics. You really don't want a uniform regime. One man's utopia is another man's gulag.

People already love to eat or order out. You could have a cafeteria for each apartment block and robots delivering inside the building like a hotel. This would still be drastic reduction, even compared to shopping by car. Going shopping by foot or bike in your local city neighborhood is probably still more, because you don't have to transport the harvested food using trucks but process it locally.

The greatest luxury of all would be to have free time.

That doesn’t follow. The same work needs to be done

No it doesn't! We can drastically reduce the amount of work that needs to be done! That is the whole point! You can look at it as capitalism being incredibly inefficient. Or incredibly efficient at creating unequal conditions benefiting those with capital (and vastly inefficient conditions for those without).

A major driver of this is advertising or "brainwashing" people to buy garbage they don't need. Or the advertising industry itself - think of the stock value of all the social and TV media, it is completely financed by advertising, and all the downstream industry that is fed by it. All that is waste!

Or planned obsolescence, purposefully producing goods and appliances that break within one or two year.

Or things like a byzantine tax code, or complicated laws. Or regulations or land ownership preventing efficient reorganization of cities or infrastructure.

PS: And yeah the obvious impossibility is that those who own and profit from all these inefficiency would never allow this. But we shouldn't forget or deny it's possible.