Early 40's and just made a switch from ChemEng to DevOps 4 years ago, after having been nerd-sniped into the field constantly while I wore "multiple hats" at Former Employer's (scope creep applies to job functions as well, huh?).
I've been meaning to do a write-up or something, but there's never a right time. I'd write more, but I'm at a festival r/n. Hit me up if you want some (hopefully useful tips).