If you are not careful, you keep asking yourself, am I behind?

Such a great point. It basically comes down to the pressure we put on ourselves to match or surpass what we see others have, and this applies to every aspect of life, not just marriage. But if we could just let go of worrying about "what people will say" or "what they'll think of me if...", our lives would be much better.

It is a well-known fact that humans want companionship. It is good to have someone that you want to talk with, share experience with

Yep, that's why it's so important to have a good family, whether it be the one by blood or the one you created with your friends.