what is lady catherine's view on entailing estates from the female line in pride and prejudice

"Your father's estate is entailed on Mr. Collins, I think. For your sake," turning to Charlotte, "I am glad of it; but otherwise I see no occasion for entailing estates from the female line. It was not thought necessary in Sir Lewis de Bourgh's family."

Lady Catherine see no problem with the female line inheriting; she believes that Charlotte's father's estate is justifiebly entailed, but that her family has never had a reason to do so.