And somehow it will run on thin air

I mean, that counts for Russia as well, but until recently you couldn’t say anything like this without getting attacked

Here in Italy most houses used to have contacts allowing max 3kW, but nowadays it’s more common to have 4.5kW (with smart utility meters which allow 30% over current for 3 hours).
Still have to be careful if you’re running a washing machine or something like that, but it’s doable.

Of course old houses may have insufficiently-sized wires, and that’s another can of worms.

I want to be able to replace my infotainment system without hassle or loss of functionality

“God helps those who help themselves”

I shower once every 2-3 days depending on the weather and physical activity.
I’m Italian and we have bidets, so I can wash my ass and genitals there; face and, when necessary, armpits I can wash quickly in the sink.