[zelphirkalt]

When you meet friends, are there never new people around? Do they never introduce you to their other friends? How did people get to know people before FB became big?

There are other websites, where you can find local groups of people. Some also group you into local areas, so you know anyone around there will be living nearby.

I do not see a problem with meeting worthwhile new people.

"FB is the only way." or "there is no replacement" are an illusion.