Carolyn Hax: Can relationships grow if not headed toward cohabiting, marriage, kids?

The pandemic clarified their lack of curiosity in cohabiting, marriage, or children. Does this imply their relationship has nowhere to develop?
https://www.washingtonpost.com/life-style/2021/10/28/carolyn-hax-relationship-growth-without-marriage-cohabiting-kids/?utm_source=rss&utm_medium=referral&utm_campaign=wp_lifestyle | Carolyn Hax: Can relationships develop if not headed towards cohabiting, marriage, children?