> families with small kids

My parents had an enclosed bike trailer with a seat to move me around on bike when I was a baby, it also worked for groceries

> old people

If you think designing cities around cars only is better for old people you are gravely mistaken

> disabilities

Wheelchairs and electric wheelchairs use pedestrian and bike infrastructure. Driving is also notably quite impossible for the vision impaired

> large packages

Cargo bike or trailer

> not everyone can ride a bike every time

Thankfully, I'm not advocating for that, there are other modes of transit that are quite effective, such as walking, busses, light, heavy, and high speed rail, planes even. And for that one day every few years that you really need a van or truck, we may just in fact have the capabilities to allow you to rent one