37, started using Linux in '98 (what can I say, late bloomer), but ran OS/2 before that as "rebelling against the M$ hegemony" (plus OS/2 was technically superior). I still have some of the IBM Linux ads.
I still don't trust Microsoft and even if I did, I consider most of their offerings piss-poor and only "industry standard" because the "industry" is run by upper management idiots. (note that the "industry" I refer here to is most definitely not SV or startups; think old, entrenched organizations that have no impetus to change or improve. You know, like government orgs. Or Microsoft).