It’s a familiar tale that Beck tells: Early in life, friendships are central to our development and sense of self. This is true right up through to those early post-collegiate years, when everyone is starting out in their professional lives.And then people get married. They have kids. Their parents get older and need more care. They settle into careers. All those obligations — spouses, kids, family, work — are things we have to do. Friendships are things we choose to do. And that means, when time contracts and things get busier, friendships get bumped.So as we get older, time with friends tapers off. “[In a study we did,] we asked people to tell us the story of the last person they became friends with, how they transitioned from acquaintance to friend,” researcher Emily Langan told Beck. “It was interesting that people kind of struggled”:
Source: How our housing choices make adult friendships more difficult – Vox