Father in law is currently doing a degree in astrophysics, he’s late 50’s. Spent the last 25 years in sales.

Had the opportunity to train an ex chef of 20 something years in a particular technology I am well versed in, he was doing a bachelors of CS and has gone on to begin a degree in psychology. Late 40’s, half a dozen kids.

It’s entirely up to you, follow your heart. The rest will follow.