I also think there's a lot to be said for the
routine of the "dad job". For many people, it's comforting to have structure in one's life, for every day to follow a similar pattern; surprises are stressful, and when every day is much like the last, you don't get many surprises. Someone like Elon Musk no doubt has busy and chaotic days, perhaps no two alike, and many people, in their heart of hearts, would not relish the prospect of that.
The rise of the so called "gig economy", and the increasing reliance on freelancing and remote work, does a lot to undermine the comfortable patterns and routines of traditional 9-5 work - for some people this is great (no drudgery of commuting is just one benefit of many), and for others I suspect it's quite the opposite. In so many of the "how to work remotely" guides you do, in fact, see a lot of importance placed on effectively separating work and non-work life, designating a specific area for working, and working particular hours - much of this, really, is intended to recreate something akin to the routine of the dad job, except without the office and the commute and the physical presence of your coworkers.