The biggest mistake made by still other parents is that they think the misbehavior of a toddler is cute, or they rationalize their failure to discipline at that critical state by saying such things as “He's only 20 months old, after all” and “It's just a stage … he'll grow out of it.” Parents of the pre-psychological era understood the need to nip misbehavior in the proverbial bud, when it first reared its ugly little head. Today's parents lull themselves into dangerous inaction with fluffy, largely meaningless homilies such as “Don't sweat the small stuff” when in fact all of the big stuff begins as small stuff. Without early correction, tantrums grow into rages, disobedience grows into defiance, occasional disrespect grows into belligerence, and not picking up one's toys grows into refusal to do one's schoolwork.
The biggest mistake made by lots of parents is they combine wordy explanations with instructions, as in “Honey, a friend of mine is coming over and I'd like to serve coffee in this room, so I need you to pick up these toys and move them somewhere else, OK?” Explanations invite push-back, as in “I was here first! Why can't you and your friend use the kitchen?” These parents tell me their children are argumentative, which means that the parents combine explanations with instructions. Children, being clever, will seize the opportunity to push back. In this example, the proper form is “I want you to pick up these toys and move them somewhere else, right now,” and the proper response to “Why?” is “Because I said so.”
The biggest mistake made by some parents is attaching “OK?” on to the end of what they think are instructions. This quickly becomes a bad habit. I once had a parent count the number of times she did that in a day. She reported more than 50, telling me that even though she was counting, she couldn't make herself stop. “OK?” is not an instruction. It is a petition made to the resident prince or princess of petulance. It deserves to be ignored, which is what usually happens.