Let's see...
There's "acquaintance, friend, close friend, and best of friends" kind.
What more?

From these, we have friends either from school, church, ex-classmates, and cousins who are these. There are just so many. How do we handle?

Having too many of these kinda friends is a good thing when holidays are around.
They keep you OCCUPIED. Going to the same place a couple of times in a month can be a bore, even with friends around to hangout with, but going to various places, exploring new things and just developing a sense of friendship among yourselves can take up memories of which will missed.

Not having these kind of friends in your life can end up in misery/utter boredom.
Just hanging around with the family, being with siblings, and etc. And you're pretty much AVAILABLE. Hobbies are one thing. They keep you occupied. But its probably not enough.

Is there any problem with having a lack of friends? It all really depends on which circle of friends you join. More than one clique can end up in good or bad situations. But I bet most of the time its a good sign. =) With the wrong group can end up in bad situations too. It all really depends.

~~END~~