However there is more to life than being an aero sexual. Even those who are that way inclined tend to slow down eventually. You cannot continually move house chasing the next flash aeroplane for peanuts, if you want anything resembling a home life.
I suspect that the younger generation are weighing up the pros and cons and given that money is now a con they are doing something else.
Interestingly if you look at the research on millennials their life priorities compared to other generations is different. Just because your generation was happy doing this job over a long period of time doesn’t mean others will be.