I guess I wasn't clear in implying my doubts as to whether that's a hard requirement. Trucks are much larger and heavier which takes its toll on the road surface itself. They don't need access to suburban environments. Even in the inner city here trucks are banned outside of loading and unloading hours to foster a walk-able environment. So yes, in part they do, but it's not that black and white.
>How flat is it there? I can’t imagine a typical kid biking 10km each way around me. I feel like the average kid at my kids’ school would take 45 minutes or more to bike that distance.
Famously pretty flat, but with e-bikes gaining ground, elevation changes don't make much of a difference anymore. And yeah a 45 minute commute by bike is not unusual, but remember, we have the safe infrastructure for it. Kids bike in from villages surrounding towns and cites.