Right, but even then, a significant portion of the cul-de-sacs homes can still be serviced. Just those close to the entry/exit.

There are also recommendations that bus stops should only be about 200 meters apart. That seems to match my experience when living in a small-ish town. Some parts were inevitable underserved, but that’s hardly avoidable I think.

Depends on the length of the cul-de-sac to be honest. It’s not unreasonable to have a bus stop at the entry, if it’s less than 200ish meters away from the furthest home.

That’s not a thing in like every single country. Might as well add a “Name of the Chinese primary school you graduated from” field, at least that would have more users.