Who says we need roads? There were societies where your fourth wall was my first and I just added 3 more. If I came over for a visit I really did drop in because everyones doors were on the roof and the sidewalk was the neighborhood rooftops. Some others were a series of tunnels creating human warrens.
Of course they didnt have conveyances but we do.
When transportation shows up spaces between buildings becomes more the standard. Sometimes people built to stay out of the path because they were tired of finding an ox in the hut, sometimes not.
Maybe I just dont want to be next to your house because the smell of your wifes recipe for chicken innards with yew bows makes my stomach turn.
Maybe I want to have travelers pass by my house and since there is no good room left on your side I build across the road so I can sell my much better chicken intestines.
Roads still appear. Maybe not logical, maybe not wide, likely confusing, maybe mud pools or rocky speed bumps, but they still appear.
You missed my joke.
A common criticism of libertarianism or radically limited government is “But...who would build the roads?”
My point was, and you rightly point out, that these people seemed to do just fine without a strong central government.