Technically started on Apple II at school, at home we first got a 286 PC compatible running Windows 3.1 and some version of DOS, then in 5th/6th grade had a little exposure to Macs at school before switching to schools where everything was Windows. Didn’t touch a Mac again until college and it was another 8 years or so before I got comfortable with them. Now I barely touch Windows and am starting to get into Linux and have my eye on potentially trying some variants of BSD also.