I'm 38 and technically a manager, and the young guys I am interviewing leave me with an ambivalent taste.
On one hand, I as a manager am filled with dread, as very few of them are interested in technology the way everyone in my generation of IT workers was. They know their narrow stack and are frustratingly incurious about anything else. They reach the edge of their competence and just... stop.
On the other hand, I know that if I keep my skills sharp, I can easily downshift into an IC and even keep my salary, because the competition is just nonexistent.