And that's fine. You can have almost no cars, but still use vans when they're required.
Hell, do like the small Swiss town in that Tom Scott video. Abolish cars for private individuals or the able bodied. But you'll still need (small, electric) cars and vans to transport the heavy stuff.
That and tradespeople often use their van as a mobile workplace. Tablesaw, semi-complete inventory of parts they may need, etc.