Closest thing I have to a formal education in IT is taking keyboarding, QB, then VB in high school in the early 00s. The only thing I came away with from that was the basic concepts; variables, integers, strings, loops, functions, recursion, etc. I remember nearly nothing about VB. Self taught some Python after that, went to Linux and started learning Bash, CLI tooling, editing confs, working on small portions of languages I didn't know like Haskell (Xmonad) and eLisp (emacs), running containers... Long enough ago I remember manually setting up Apache and MySQL a few times, editing whatever init system I was using to ensure they started, etc.

Time and cost are big determining factors. Sometimes I'd like to know more but never enough to become indebted to educational bills for something I'm not making a career out of. Same reason I can install, remove, rekey and pick various locks, and have installed some access control stuff in the past under an employer, but I'm not shelling out to become licensed Locksmith or Security Systems Technician myself. Tools are comparatively inexpensive, and I have many from past employment, and YouTube is still free and archiveable... add in a bit of "dorking" to find manuals and whatnot and self-teaching just makes more sense for me. Same reasons I'm entering my shade tree mechanic arc these days - it's not worth paying to become an auto tech but it is worth saving thousands on the repairs I can do. Plus it's just fun to learn and work with my hands.