If one is already in academia and is fairly successful, why not? I am not saying that's why ALL people stay in academia. Some really love it for what it is, but

If one is already in academia and is fairly successful, why not? I am not saying that's why ALL people stay in academia. Some really love it for what it is, but I have seen it first-hand. One sibling working her ass off to prove that she can be as successful as her parents, under tremendous stress, and the other one never leaving school to not even deal with that.