You do understand she’s entering a convent, right? Like with other people?
I once went on a retreat at a monastery with monks who baked bread. It smelled heavenly—but that’s beside the point. Except for the monks who ran the retreat house they were all cloistered. They took turns running retreats and many often wished for the comradery of the cloister.
One of the guys told me it was like a life-long slumber party with your best friends doing your favorite thing for your entire life where you still feel, at 60, like you are “sneaking out” to do the office at 3am. He was sad when he had to remain “behind” in the retreat house.
And they do have a family. Considering how often I get to see my grandmother since I live far and she cannot travel, she may see her family more than the average “had to move 500 miles for a job SAHM with little kids”
She’s not locked in a prison cell.
I think your view is very limited and based around more guess work then reality.