
I've done some contracting work at Apple, and one thing I will say is that, at least at the campus I worked at, their workforce was actually quite a bit older than most other places I've worked. Most people seemed to be in their 40s give or take a decade. Some people were obviously older than that.
Not saying that this guy's claims don't have merit, just that of all Apple's workers, even just within Silicon Valley, I have personally seen probably only a tiny fraction. However, compared to places like Google, where they have things like beer kegs and ping pong tables set up as perks, and it seems rare to see someone much over their 30s, Apple's workforce is quite a bit more mature.