Being a homeowner does not mean you live in single family house. Yes, I own my home in Oslo but I live in an apartment. We have shared garage areas which is indeed common in Norway even for people with single family homes. Garages are often clustered in Norway to keep neighborhoods car free.
We also have problems all across Norway with electrical capacity not being enough to install chargers in these garages. So upgrades to the grid has been necessary lots of places.
We only recently got a grid upgrade in my apartment complex to allow installation of chargers.
You really want to charge where you park. Day to day you want to l2 charge your EV. Which is like a 4-12 hour process. Most people without at home charging that relay on 100% supercharging a) aren’t happy about their car and b) are toasting the battery.
Simple charging plugs at work though are a solid solution. Can get your charge in while you work.
In my street it's the other way around. If you buy an electric car, the city will guarantee a charging spot in your street, which is basically a private parking spot if you're the only one in the street with an electric car.
We have a shared garage with other people in our building. One family bought an electric car and wanted a charger in the garage, but despite the whole HOA agreeing, it's apparently too hard to get metered electricity down there.