ISAs are also appealing to people pursuing degrees without an intent to become high earners, such as those looking to 'broaden their horizons' or 'earn their Mr./Mrs.'.
The saying really doesn't work for "Mr." because the male honorific doesn't change based on marital status. You get you "Mr." just by existing, you don't need to earn it.
I was just trying to avoid the appearance of misogyny; though I know some men who have changed their last names to their wife's, and I'm not sure how else to quickly allude to that.