[timwilky]

I work in an environment where many senior management hold PhD qualification. But are no longer active in that aspect of their careers that required the PhD in the first place. i.e they have moved on as their careers have progressed.

One friend with a PhD in noise and vibration relating to steam turbines is now a heath and safety director for a large construction company. Another with a PhD in artificial intelligence now runs an international consultancy. another with a maths PhD in some weird Steiner series stuff is a project portfolio director for the Dept of Transport

Do the PhD. It is an opportunity many of us in later life wish we had been able to do. We look back at our own careers and see wasted opportunities that would have taken us in different career paths.

A qualification does not limit you to a single career.