"Do The Young Hip Welsh City Kids Of Today generally speak Welsh, or is it just sort of a you-learn-it-in-school type of thing? Because whatever they do, I think that's probably what Ianto does."

I think he would have gotten at least the basic of Welsh in school but picked up more either through elderly relatives or just his compulsion to know things. The latter tends to tie in w/ my belief that has more than a bit of an eidetic memory.

Morgan