This is not a new study, it's a Victorian study! Yes the women who weren't attractive (or belong to a wealthy family) had to find a mean of earning their own money as they were unlikely to find a suitor. But nowadays? Please!
Women and girls are now overtaking men and boys at all levels of education in the UK and some professions are becoming female dominated. Good, as long as they retain their special female characteristics. (Thatcher was not a good example!) Some men are so afraid of us that they have to say ' Yah, boo, you only want this university place/good career because you can't get a man'. Please note that I have said some men - my own grandsons are not in the least sexist and I am sure the same applies to all your families.