Google+ Gets PG13 Feature
In other words, you are now able to place an age limit on your posts – for instance, making your posts available to those who are older than 18 or 21 only, as well as on the rest of your content, or even to have it appear to those who hail from certain countries. Heck, it is so flexible and powerful, one is also able to set different age restrictions for individual countries.
The extra paranoid among you will now have the opportunity to be more than thorough, which is a good thing when you think about the customization level afforded by the folks over at Google for Google+.