I can't think of a really good computer analogy to explain stroads, but if I were to attempt it I would say that it's analogous to forcing everyone to use a CLI, for _everything_.
Roads can move a lot of people and material long-distances, quickly. CLIs are powerful, but I've never seen an e-commerce application with a command-line interface. It'd be the wrong tool for the job.
Similarly, you shouldn't build multi-lane roads with wide lanes (which is all a great fit for highways) in places where you expect a lot of people to be, especially if they're shopping.
Roads can move a lot of people and material long-distances, quickly. CLIs are powerful, but I've never seen an e-commerce application with a command-line interface. It'd be the wrong tool for the job.
Similarly, you shouldn't build multi-lane roads with wide lanes (which is all a great fit for highways) in places where you expect a lot of people to be, especially if they're shopping.