It was a survivorship bias point but I didn’t make that clear.

I meant if you meet X people at a random point in their career then on average more than half will make it to the end because some of the original sample died before you sampled the population. Basically older people would have a lower chance of their luck running out even if they where all equally incompetent.

At least assuming the original population isn’t dying of something else vastly more often etc.