In the German speaking world everyone knows what a hp is (PS), how much his car has, his past cars had, in which configurations their car is available... although the kW is what is printed on the documents since ages now.
Nobody likes change. Some people still complain about the Euro, and that the DM was so much better... At least it is not called ECU.
"The country where everything is bigger (*)"
(* except for consumer goods that would be designed around a practicable supply current of 10A elsewhere)
But seriously, I do like the split-phase power we have in the US. I think we get the best of both worlds, having lower voltages in most living spaces, and higher voltages reserved for high-power appliances.
How is this possibly a benefit for anything though. It's not like 110V is safer in any practical way, if you stick something in a socket it will kill you just as much as 220V would, so it seems like for literally no reason at all American homes have a much less "ability" to support a wide range of devices that work without any issue elsewhere in the world.
I've been shocked with 120v on bare skin multiple times.
Current code in US/Canada also requires RCDs (we call them GFCI) in some places (and AFCI everywhere, which the rest of the world hasn't really adopted) and shuttered outlets... but these do not catch all types of faults. For instance, if a human conducts electricity across two conductors connected to an RCD/GFCI, it won't trip. It only trips if current is drawn to ground or to another circuit. Layered safety is a good approach.
That's not to say that 240v systems are unsafe -- they just have different characteristics and requirements because of it.