I have two young kids and while it's changing as they get older I hardly have time for ANY hobbies, let alone enough for a range of activities of which this mig

I have two young kids and while it's changing as they get older I hardly have time for ANY hobbies, let alone enough for a range of activities of which this might be one. You say it's not about logging extra hours but in reality that's what it comes down to - you can't read books, write code, explore libraries and so on without time. Now in part I'm playing devil's advocate - there are podcasts you can listen to on a commute and you can read the odd blog post in a few minutes here and there and a relatively small amount of time can make a difference - but I still think people need to be realistic about what might fit with a particular candidate at a particular point in their life and what that actually means.