I am now starting to see something...

Having friends and family isn't really necessary. At the end of the day, none of us will live forever. So what's the point in having friends when they're going to either leave you or die? I know it's a big game of chance and all, but what's the point in having them?
I also see no reason to grieve for loved ones. Why are we crying exactly? What do we expect to get from crying and grieving over them? We don't know if they're even there to see our tears, our emotions. At the end of the day, we'll stop grieving and go on with our lives.

I have family and friends. I don't expect our bond and lives to go on forever. I'm guessing we care because of the moments and fun times we'd have together.