Couples naturally express intimacy in different ways as they get older. Companionship becomes more important than sex. There's a change of focus. I teach my students, people in their twenties, that sex is not just about orgasm. And this is a lesson they can learn from their elders.
Older couples emphasize intimacy over physical prowess.
While younger people tend to equate intimacy with intercourse, older and more mature couples do not. You seem to be describing a return to romance, on a certain level. A shift from the physical to a higher level of intimacy. People don't look at that among the population. But I'd love to see that change.