For example, my home town Hamburg (in Germany) is a bad example of too few parking spaces being policed correctly. At some point, the drivers give up searching for a free space that's still in a walkable distance from their destination and will park illegally, which leads to one of 2 lanes being permanently blocked by resting traffic. Apparently the police doesn't care about these illegally parked cars.
There are lots of cheaper and more space-efficient alternatives for personal transport, which were mentioned in the article.
It's also possible to rent shared cars for the rare case you actually need a car (if you want to transport large furniture for example).
Speaking from my anecdotal experience, not owning a personal car works pretty well, I commute to work with an electric bike in 20 minutes (which is actually quicker than taking the train or driving a car and then look for a parking space). If I want to buy furniture and I can't transport it with my bike, I can still rent a car.
On top of not having the dreadful experience of having to search 10-20 minutes for a parking space every time, it's also a lot cheaper.
I work from home, though, and I don’t use the car for daily commuting. Commuting is the main driver of most traffic problems in the cities, so there’s that.
> Tram line near my house produces much more noise pollution compared to cars.
Now divide by the number of passengers and try again.
Mostly because of the Chinese industry. Also coal and gas electricity generation. Nuclear power is the solution.
> Now divide by the number of passengers and try again.
Doesn't work like that. You can't divide noise. There's a threshold level.
For example cargo ships:
It's not just the homeless, it's the family of 3 living in a 1 bed apartment (when they'd rather not be). It's the person living in Ventura who spends 4 hours a day crawling down the asphalt ribbons of death in a metal box for their job in Playa del Rey.
Every time someone says "I want my free car storage on the street so don't build homes here" they're saying "I want you to have to commute farther so I get free taxpayer-provided parking welfare"