Childless Adults

To all those adults out there who don't have children but seek to dispense advice to those that do:

Please stop handing out advice to parents.  Please.  Unless you are a child psychologist or medical professional of any kind. 

Yes, we know you feel that you could, if you had them, raise children better than people who actually have children.  Yes, we've heard about how you practically babysat all the time for your cousins/neices/nephews/once had a pet and, how different could it be, right?  But no, really.  Just stop.