This makes a lot of sense. The city center is so dense, it physically doesn't have enough space for all the cars and vans. The traffic is moving at bike speeds

This makes a lot of sense. The city center is so dense, it physically doesn't have enough space for all the cars and vans. The traffic is moving at bike speeds already. There's no space to park vans for residential deliveries, so they keep blocking the streets. There's no need to have 3-tonne vehicles for next-day deliveries of socks and USB cables.