When you get older, life is busy, there are so many factors that weigh in on your day and it would be good to know when the day is done that you don't have to be the one doing the calling/texting/inviting to see the people you think are your friends...that maybe the would call/text/invite you.
I think I'm gonna stop and if people contact me, well then I know they are friends and if they don't oh well.