Fair, it’s a loose definition of woody, but all wood really is is load-bearing cellulose.

Bamboo, for example, is completely hollow inside, very unlike normal wood either, but we still consider it “woody” even though it’s really just a reinforced piece of grass.

The banana argument is dumb, too, because there is no taxonomic definition of what a “tree” even is.

I’ve also commonly heard “Palm trees aren’t actually trees, they’re grass,” which is correct from a taxonomic standpoint but ignores the fact that “tree” isn’t an official classification of anything. It’s simply a term applied to any tall plant with a woody trunk, which banana definitely counts among.

Does Finland use C outlets, though?

At least in the US, just about every outlet has a ground port (Type B), even if the device you’re plugging in has only a 2-prong plug. I’ve only seen the Type A outlet in one really old building.