City/road design, greater distances of travel, higher speeds. No character, moral, or legal failing required. Some designs work better in some contexts than others.

I wish I could remember the YouTube channel but I saw a couple great critiques of road and city designs comparing the US and certain places in Europe.

Ah ha! I found it searching “stroads”, this is part of a series:

https://youtu.be/ORzNZUeUHAM?si=qN4_wwYnf8nQENjX