I have a huge place in my heart for folks who come from a non-spooky background, encounter subjects they have no frame of reference for, cannot possibly understand, and come out the other side as haunted as the main cast.
Delia, having processed the haunting, clearly turns it into the first real bones of an art career that quickly excels (see Art in America behind her).
I frequently wonder what happened to Lydia's photography career, post-Beetlejuice, post-reconciliation with her step mother, post-her father recovering from a nervous breakdown.
Delia is frequently cast a villain, prior to the haunting. Her husband is suffering from a shattered mind -- we can debate the morality of his job in parallel -- the core of the story is "Delia's husband is having a breakdown. His old boss/client is coming. This needs to be fixed."
I have frequently seen folks tag Morticia as a role model for motherhood, better than Delia.
This is Margaret Alford with Cousin Itt.
In The Addams Family (1991), Margaret is married to Tully Alford.
Tully, the Addams Family lawyer, is seeking to rob them of their fortune. Betrays them wretchedly. It would have been fine but he also tried to break up the family (dirty pool, old man).
Margaret, who didn't want to go to the party, the party where her husband was actively going to betray the Addams, meets Itt.
And when she finds herself a widow, pursues this relationship with him.
It is fair to say they are very happy.
This post uses Margaret Alford as a lens to view the post-Beetlejuice life of Delia, because few precious minutes are shown after The Sandworm Incident.
I hold in my heart, though, the Deetz family would have reconciled.
Delia would have used the newfound calmness and stability within herself and her house, her emerging success, to help Lydia's photography career, pairing with the Maitlands, pushing the boundaries of spectral photography, art, and the joy of a haunted house.
I hold in my heart Delia Deetz would meet Margaret Alford at an art exhibition -- her own, of Lydia's, or of a joint show.
If Morticia were not there, Margaret absolutely would introduce them and they all would have tea, discussing their children, discussing ghosts and Halloween decorations and gardening and so many things.
Appreciating these are all fictional women, and real folks have differing opinions, thank you for the space for the ramble.