I’d mostly agree. I would like to add one additional point. If you can, a PhD can change the way one thinks. The idea of formulation of a question, creating a plan to test it, evaluation criteria to monitor and drawing conclusions is beneficial even beyond research. However, those benefits only materialise if one views it from that lens. You will think differently from your peers which can give you an edge in sports, management etc. The question then arises is 1) Is this something one desires? and 2) what effort are you willing to spend to achieve this desire? That’s a personal choice to make.