However, I think the opportunity (from both a business and user experience perspective) is for a true digital representation of your current real life social network.
I care deeply about friends and family that I cannot see on a daily basis because of distance and time. That doesn't make those bonds any less real or important and it doesn't mean that online socialization (jokes aside) is any less meaningful than "real life" (there are, in fact, scholarly research publications that support this and I could find them, but honestly, it's been a long day).
Moreover, frequency of interaction doesn't always reflect strength of social bond. I have friends I would kill for who I talk to once a month or less, simply due to schedule, new parenthood, etc. I think that's certainly the case for many adults.