Why is gift giving so important?

Bre

There have been a lot of questions asked about gift giving when it comes to weddings, showers, birthdays, etc. My question is why is it customary to give gifts? Why is it frowned upon when someone doesn't give a gift?

I don't see the point, and sometimes I just don't have the money to do so, but that won't stop me from attending the event to show my love and support. Empty handed or not, I would just be happy that that person was there for me.

Thoughts?