If having children improves happiness as much as some studies suggest, it seems like Elon Musk, with his 14 (at least) kids, should be over the moon. The Tesla CEO, freed from his doubtlessly tiresome day-to-day relationship with President Donald Trump, can turn his attention back to the businesses he runs, albeit with that “time for a new political party that actually cares about the people” side hustle. But though he’s out of the White House and back in the boardroom, at least two of…

