Surely this is a question where many opinions will be biased.
If you did a phd and stayed in academia then you are likely to feel that having people do phds and leave academia is a waste of resources (maybe this is wrong and phd students are so cheap that they are net contributors).
If you did a phd and left academia then you are perhaps likely to feel that your phd bestowed benefits to you outside of academia and that those benefits ought to be afforded to people in later generations.
I suppose if one doesn’t have a phd then one might have either opinion, or some other opinion eg that phds are entirely a waste of public money.
If you did a phd and stayed in academia then you are likely to feel that having people do phds and leave academia is a waste of resources (maybe this is wrong and phd students are so cheap that they are net contributors).
If you did a phd and left academia then you are perhaps likely to feel that your phd bestowed benefits to you outside of academia and that those benefits ought to be afforded to people in later generations.
I suppose if one doesn’t have a phd then one might have either opinion, or some other opinion eg that phds are entirely a waste of public money.