Personal Anecdote:
Regarding these girls/women who have worked 20 years in a law firm and are still single.
Mrs. CTL died 3 months ago, I have already been approached by shadchanim about 4 of these females.
I am not interested in remarriage at this time and certainly not to someone younger than my own older daughters.
That said, some of these past their 20s females need to open themselves up to the idea of making a marriage, home or family OOT. It adds to the available pool of single men.