I had these concerns almost 10 years ago [FB "friend" request from my boss, WAT?]. Clearly, the ship has already sailed and nobody is moving away (at least not for that reason). As others have mentioned, Google Plus had an elegant solution that I quite liked, and was never truly replicated by facebook.
As a father, I've started building my own web presence for my family. I have no desire to upload pictures of my daughter growing up to Facebook, and I definitely don't want all of these photos shared with everyone I've ever facebook friended. Right now, I've got a bunch of photo galleries on my-daughters-name.com, but I'm going to have to re-think this strategy since we're expecting again next month.