Kremin
Since time immemorial the kids of pilots have become everything from Brain Surgeons to dole bludgers.
And the kids of wharfies to politicians have become airline pilots.
Of my kids, two could not get real jobs - one is a pilot in Australia, one a trolley dolley overseas.
That is the career they chose - that is one's right in this lucky country. I'm sure your mate's son made the decision that suits him. I don't believe an ability to fly and an affinity to an airline career is necessarily genetic.
And the point of your post is.........???