Impossible to know. I think there would be a lot of job switching around though.
Maybe more people would become teachers in the US, and people might go towards jobs with better hours or less stress. Mostly, I think people would be more free to pursue jobs and careers that they enjoy more.
It wouldn’t work of course. I’m all for flattening out the huge pay discrepancies in the US, but I would never be in favor of everyone making the same wage. For that to work many things would need to be different, and so far in history it has never worked and usually disastrous.
I once saw a TV show about one of the Nordic countries that the wages were much closer for many fields of work, and it did give people opportunity to work in jobs they preferred and seemed to give jobs usually viewed as lower status more respect.