Sure you can. Google+ uses the concept of 'circles'. You can name a circle anything you want, and have as few or as many people in that circle as you wish. When you upload photos, you can specify which circles to share them with. Personally, I ditched Facebook and joined Google+ specifically because it was easier to control security issues. In fact, Google+ has become my main method of sending encrypted messages to business contacts.
I don't think that's his point though. It's the fact of having to join another social site. Having dealt with FB's tacits regarding security, I can hardly blame Franglais for being gun-shy.
- Joe U.