[throoowaway]

I think it's that earlier generations had more of an implicit promise (mostly since broken, but don't tell them that) that loyalty to a company was a way to a steady paycheck and a pension. If they're older, they also are more likely to have a family to support, and missing paychecks when you have that going on is not a good look.

By contrast, I'd be hard-pressed to think of any millenials--especially in tech--that have worked at a company that wouldn't fire them the moment it made financial sense to do so, that would give them a meaningful stake in the growth of the company, and that have actually realized that the "impactful work" meme is just a way for companies to promise compensation that conveniently never results in a transfer of money.