On the flipside, my current company as a rule doesn't hire below 3-5 years of experience. Especially if their degree is in something like IT or MIS/BIS I've found a junior dev working 60-65 hours a week is noticeably less productive, even to managers and non-tech executives, than a senior dev working 35. Even the person with 5 years of industry-relevant experience will be less productive (though not as noticeably) than someone with 20. We're not in a spot in the market where we can afford the drop in productivity from the seniors, and leadership hasn't yet decided to make the investment required to hire enough to overcome that (e.g. hiring "extra" seniors so we have enough slack to train cheaper juniors and mids).