Don't be so hard on your grandmother!
It's entirely possible that she enjoyed her quiet, contained life.
My life is very much like hers -- especially now that we've got this pandemic -- and, at 67, it really isn't safe for me to venture out and have adventures.
And, by nature, I'm not much of an adventurer. I'd rather stay home and read a book. (Or an essay on Medium!)
Looking at me, you'd think that nothing was going on and that my life was dull.
But I enjoy it very much.