I can absolutely believe that. I'm a relatively recent transplant to a new country and though I fall into your category A and am nowhere near fluent, I could co

I can absolutely believe that. I'm a relatively recent transplant to a new country and though I fall into your category A and am nowhere near fluent, I could conduct basic daily affairs (ordering at restaurants, pay bills at a post office, make basic appointments) in about 2 months or so of being here. I think adults don't give themselves enough credit in language learning.