All of my IRL friendships are based around activities - we play games together, we volunteer together, etc. When someone moves away and we try to keep the friendship going, it always just sputters out after a few weeks or months. It just seems to devolve into small-talk / catch-ups that neither of us are really interested in (I don’t mind small-talk too much, but it can’t be 100% of any meaningful relationship).

So: What is the point of a long-distance friendship for two people who have no plans to live locally again? What am I missing?