Muenster, for example, has a beautiful bike circle around the inner city because that's where the city walls used to be. US and Australian cities are much younger and don't have such 'restraints' to work with, so they become car heavy automatically.
If there was one thing the Dutch were pissed off about very long until after the war it was that the Germans took all the bicycles (or at least large numbers of them) to toss them in the smelt for their weapons factories.
When I was a kid - not all that long ago, say 1971 - German tourists were routinely told that if they wanted to get directions they first had to return some bikes... Since then the sentiment has fortunately changed a lot but there definitely were tons of bicycles here prior to WWII.
Even the Dutch version of the road-side assistance was originally called the 'Algemene Nederlandse Wielrijders Bond', which is as much as the Dutch bicycling association. They were instrumental in marking the roads and providing help for stranded cyclists. Over time they morphed into the more car centric entity of today.
If they WANTED to they could easily make dedicated bus and bike lanes that are safe.
It easy they have so much space. European cities have to almost ban cars, to make room for bikes...
This is a political issue, where Americans choose not to do something.
Parking contributes, but it’s mostly that American towns have at most a few blocks where European-level density (3-6 story buildings directly adjacent to each other) is permitted.
Good luck prying the detached house with a backyard out of the typical American family’s hands. Good luck getting them to consent to a multi family structure next door.
Unless you're a pedestrian that wants to cross those wide streets. My stays in Salt Lake City are sometimes harrowing.
You can choose to use your streets differently. I see wide streets in SF that could have been closed and turned into pedestrian only streets.
Union comes to mind, there are shops and restaurants on both sides, close it to traffic and you have nice shopping street.
AI is nowhere near the level of needing space.