Abuse comes in many forms, I have no idea if this treatment was abusive or not. I didn't get the impression the child purposely headed for the golf cart so he could hit it with his bicycle, rather it sounded like an accident. So what I don't understand is the benefit of yelling at him in public and then striking him, even if it's with an open hand. Nor do I understand the criticism of American parents who don't behave in this manner. I do agree with luvinlife: unless abusive, parenting styles should be left to individual parents. I just wouldn't choose this particular style as a cause for celebration.
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Practice random acts of kindness, senseless acts of beauty, and stellar avoidance techniques.