This is an extremely miopic view (or maybe trolling).

The vast majority of software developers never study, learn, or write any code outside of their work hours.

In contrast, almost all professional have enormous, _legally-required_ upskilling, retraining, and professional competence maintenance.

If you honestly believe that developers have anywhere near the demands (both in terms of time and cost) in staying up to date that other professions have, you are - as politely as I can - completely out-of-touch.