Many TV series, books and movies feature cute and fun everyday dramas of a circle of friends. For example TV series like Beverly Hill 90210, Friends, Ally, and The Big Bang Theory.
I’m not sure how realistically they portray how it works, but a circle of friends seems like a common expectation for a normal social life. For me, that expectation has caused a lot of agony in the past which still lurk somewhere in the fringes, saying your life is not good enough.
What a Circle of Friends Is
My understanding of a circle of friends is a group of friends who all know each other well and typically have known each other for a long time; so they are a bit like a sort of family but not usually family. They are usually within the same age range and socio-economic segment. They hang out together often, maybe almost every day, in regular rendezvous locations such as a specific sofa set-up in a cafe or shared flat. They have shared habits, rituals and history together and know what to expect from each other.
A circle of friends typically comprises 3 to 8 members, who may not all go perfectly well along. Just like in a family, members have to be tolerant of each other across even seemingly incompatible differences and find diplomatic ways to cope with incompatibilities. Contained friction is OK (and fictive contained friction tends to be hilarious). Open serious conflicts and exclusions are not OK, since that would tear apart the group.