A user since 1999.

Started on DeadRat (RedHat), then RHEL (never with any support packages), CentOS, Fedora, and now seduced by Debian mostly - Stretch/Wheezy/RasPi on my various ARM boards/SoC, and a copy of Ubuntu 18.04LTS on my primary desktop machine (well, it's a laptop, not a desktop, but it sits on the desk wired in and not lapping or topping).

I refuse to use M$ or Windoze, last dirtied my fingers with XP and haven't had to touch it since, luckily. Apple can go fornicate it's plagiaristic closed-source software and it's overpriced hardware. Hate all Crapple with a passion, but it has the positives of being easily used when needs must as it's just a *nix running kinda like in special Toddler&Preschooler mode, where it won't let you do s**t or change anything, but it'll let you poke around in a limited, supervised, sanitised shell.

As for Android... I hate Java with a passion. But it's the only choice - the only IOS I interact with doesn't run on silly, overpriced white phones, it runs on silly, overpriced, noisy, large grey boxes 19" wide with a logo that looks a bit like this: 1u._.u1 (with lots of cables attached and bristling with LFLs and 4 LRFs[LFL: Little Flashing Light; LRF: Little Rubber Feet]).

With Apple basically running an Apple-ised GNU system (it _IS_ Linux, just without the Kernel ;) ) and M$'s "PowerShell" almost fully POSIX-compliant you could argue everyone is using Linux these days!