It took us fifteen minutes (excluding the run to home depot for the socket, breaker, wire and a steel pipe) to run a new 240v socket from our electrical panel in the garage to a few feet away from it. I can't imagine ever spending $2000 on the installation of a single 240V socket right next to the panel.
You can’t? Here, I’ll throw you a softball: service panel upgrade because your 6Kw charger is way more than your 1960s house can handle.
Most common case, of course, is run a piece of conduit from panel, some wiring and a plug, sorted in 30 minutes. But not everyone.
[ Also, presumably Americans do have electric ovens right? So your ovens can't be 120 volts at 15 amps, that'd be like a kid's toy, there must be beefier power inside a typical American house already, albeit maybe not near the car? ]
The only reason I still got a level 2 chargers at home was because I have doubts a level 1 will be enough to charge in the colder months of winter.
I've owned a Leaf for eight years, and it was worth a read. The first half, if you already own an EV, is blah, blah, blah. But there were some good insights in the second half, including that you might not need a Level 2 charger in your garage, a (US 120V) Level 1 might do. I will say that one might be capable of installing a 240V outlet oneself and save $2000.
But most insightful were the observations of how the whole system is "rigged" (for lack of a better word) for ICEs. A lot of the poo-pooing of EVs would go away if we didn't build a system that assumes one will plop their ass in a emissions-spewing two-ton wheelchair to go get a quart of milk.