That is absolutely not the case where I live (Austria). You get multiple phases into your home, at the very least to garage and kitchen.

Electric stoves in Germany are usually hooked up to a special 3 phase wire in the kitchen, but thats the only exception in can think of, at least for apartments.

Nope, most electrical cookers need 3-phase connection and those are used all around Europe.

bjelkeman-again is referring to kVA- a unit of power rather than voltage.

Systems which run a higher consumer voltage (e.g. 230V) will tend to use higher kVA transformers compared to the American system (~110V).

I believe this is because it is feasible to run longer cables when using higher voltage (higher voltage -> lower current -> lower thermal losses per metre of cable), hence it is economical to use fewer, larger transformers in a higher voltage system vs. a lower voltage system.