The Bennet girls, especially the younger ones, haven't acquired much education, and it is odd that even Mrs. Bennet, who was anxious that they all marry, didn't insist they all learn to play the piano and sing and draw, the usual accomplishments for young ladies of the time. And since Mr. Bennet certainly should have been able to see that his wife wasn't up to the task of educating the girls herself, he ought to have insisted on hiring a governess, instead of contenting himself with laughing at his silly wife and younger daughters. He's willing to hire sufficient masters to teach the girls, but because he hates London, the family doesn't get the benefit of the best masters, although they probably could afford them.