The generated response makes several correct points but additional insight is needed. Importantly, social and economic distinctions play a key role in both relationships.

Both relationships illustrate shifts in social and economic barriers. Darcy is much wealthier than the Bennets and enjoys higher social status. His aunt Lady  Catherine is part of the British aristocracy, as was his mother,  Lady Anne. Darcy points out their differences in his first proposal to Elizabeth,

He spoke well; but … His sense of her inferiority, of its being a degradation, of the family obstacles which judgment had always opposed to inclination…

In Persuasion, the Eliot’s are wealthier than Frederick initially and, as the daughter of a baronet, Anne enjoys higher social status. Anne holds no feeling of superiority but understands Lady Russell’s opposition.

“Captain Wentworth had no fortune. He had been lucky in his profession; but spending freely, what had come freely, had realized nothing.”

She is persuaded to break their engagement. In Pride and Prejudice, Lady Catherine forbids Elizabeth to marry Darcy and describes Elizabeth as 

"a young woman of inferior birth, of no importance in the world… honour, decorum, prudence—nay, interest—forbid it [the marriage]. You will be censured, slighted, and despised, by everyone connected with him. Your alliance will be a disgrace; your name will never even be mentioned by any of us.”

If you were sensible of your own good, you would not wish to quit the sphere in which you have been brought up.”

Elizabeth’s response is crucial because she rightly claims equality to Darcy.

“In marrying your nephew, I should not consider myself as quitting that sphere. He is a gentleman; I am a gentleman’s daughter; so far we are equal.” 

In both books, the daughters have no claim on their fathers’ estates and thus must marry to secure financial security. However, Elizabeth will not align herself to the immensely wealthy Darcy for financial security. It is only as she grows to love him that she wants to marry him. Anne also puts her feelings ahead of pressure to marry. She fears that she might constrain Frederick's ability to rise through the naval ranks if she marries him. However, once he is a captain and has achieved a fortune, that changes.

In both books, the estates symbolize social shifts. Lady Catherine says if Elizabeth becomes mistress of Pemberley, “Are the shades of Pemberley to be thus polluted?” Sir Walter is forced to lease Kellynch Hall to the Crofts and Anne

“could not but in conscience feel that they were gone who deserved not to stay, and that Kellynch Hall had passed into better hands than its owners.”

When Frederick and Anne marry, Frederick

was now esteemed quite worthy to address the daughter of a foolish, spendthrift baronet, who had not had principle or sense enough to maintain himself in the situation in which Providence had placed him…”

Austen encourages readers to perceive the lovers as more than just fictional characters by giving us insight into their internal thoughts and feelings. For instance, when Anne sees Frederick in Bath initially, her feelings are very relatable. 

Her start was perceptible only to herself; but she instantly felt that she was the greatest simpleton in the world, the most unaccountable and absurd! For a few minutes she saw nothing before her; it was all confusion. She was lost…