[mcgwiz]

Age is just a heuristic. It's not an age gap, it's a culture gap.

Expectations of one's job are vastly different (fulfill all of my personal needs versus provide financial stability to support my personal life; work-life blend versus work-life balance).

Ethics are different (Adderall will get me through crunch time versus ugh! crunch time!; give me little projects like I had in college versus give me an area of responsibility and a mandate).

Standards are different (this project will be dead/replaced in a year, or I'll be at a new gig, so building quality is a waste versus always build quality, the definition of which I've determined based on decades of experience).

There's a gap of political perspective as well (boomers and, to an extent, Gen-Xers screwed up the world versus inheriting the established business/social order was generally accepted).

Easiest to understand is a vast difference in language and cultural reference points - not as different as an ESL candidate but on that same spectrum.