My dad worked for Firestone from the time he left Henry and Richard Bloch's CPA firm in KC inthe 1950s until he over saw the closing of the Los Angeles Tire Manufacturing Plant and the eventual sale to Bridgestone. We moved every two years until I was 8 because my dad was promoted. Even after he retired from Firestone with fully vested pension and gold watch, he worked for Firestone Affiliates in San Diego, until he retired for good.
Our generation did much the same thing: you either were promoted and got a raise, or you sought another job elsewhere to gain your own promotion and raise. A lifetime with one company wasn't really achievable the way it was for my dad's generation (b. 1931)
Even after I started teaching, there were openings at other schools which paid more, so people left.
Change was in motion for us as kids--civil right and voting rights happened when we were small, so did Nixon and Watergate. Coming of age in the Reagan years, and the great undoing of Government (the problem, rather than a solution generator) appealed to the boomers, who did have free college and an expansion of ideas. IT wasn't until I was much older did I see just how conservative things were, even in the early 80s while punk was breaking out all over.
YMMV