While the other person saying 80 years is a bit much, it has been a constant for at least 40 years now.
Personal computing and software isn’t new.
Edit: To clarify, 1984 (40 years ago) saw Superbowl ads for the Apple Macintosh and the advent of the CD-ROM.
You’ll have people in governments that remember a time without computers
You’ll have some that don’t understand buying is just renting because it wasn’t a thing
Even 30 years is pushing it as a widespread thing for home use 30 years ago would fall into the second group
I’ll agree that 40 may be a bit too far given some of the real dinosaurs in government. That being said, dating myself here but I have very fond memories of personal computing in the early 90s, even playing games online!