Well, what problems are you trying to solve by having the classes all access each other’s data members? Why is that necessary?

Cookies required for the website to work (like that one) are totally fine and, in fact, they don’t even have to ask you about them - if they’re not used for tracking. So no, asking each time is definitely avoidable.

Because I didn’t know absurdism, I read the second one differently at first:

[The] nothing matters.

And I immediately had to think of this gem:

“But it doesn’t do anything!” - “No, it does nothing.”

I don’t really like including pedestrians in there. Like sure, you can fit a bunch of people in a small area, but another point you shouldn’t ignore is the throughput over time, and pedestrians are by their nature rather slow. Obviously if you’re looking at shopping in a street lined by shops left and right, then that street becomes tailor-made for pedestrian traffic (and nothing else except perhaps bicycles). But public transport is much better suited for travelling any further distances, and that should be the main focus when deciding to ditch cars.