I don't think some folks would have a clue about parenting, even if a handbook came attached to their kid upon birth.
A prime example of this is a recent news story involving a 27-year-old "father" from Myrtle Beach, South Carolina. He decided to take his infant child along for the ride when he drove to a gentleman's club. According to what he later said to authorities, he just came to the place to pick up a cell 'phone from his wife, who was one of the dancers at the establishment.
Seems, though, that "Daddy" decided to stay longer, since his wife was otherwise occupied. He sat down at a table, popped a few cigarettes and got his groove on by getting a lap dance from an attractive female employee, as he enjoyed some hedonistic fun.
The only problem was that he left his sleeping infant in the back of his car outside.
Even worse, he left the door unlocked.
Thankfully, a concerned patron saw the snoozing baby and called the cops, who arrested him for "unlawful conduct towards a child" for his shameful negligence.
In terms of sheer, mind-boggling stupidity, this guy is the embodiment of a complete idiot.