I think it can be a useful signal when considered in conjunction with other things, but I don't put a ton of weight on it. As someone who's in their 30s now, has a house and had a kid within the last year - I know firsthand that finding time to program outside of work can be difficult/impossible.
Try doing it with 2 kids. I wake up early and then get 1 maybe 2 hours to either go for a workout or do something for me.
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