Q: how to persuade and win the argument with the kid ?

First of all, let’s not call it “winning” an argument. If your intent is to prove your child wrong you are simply modeling a stubborn behaviour that your child is emulating. What you end up with are two people determined to prove their point.

Instead, teach your child how to argue effectively.

1. Focus on the future.

   Ignore arguments that involve the past – what you think you ate last Sunday and what your kid thinks you ate last Sunday is not important. Simply tell your child that you are not arguing, it is not important and then change the subject.

2. Know when to end the argument.

   Children are stubborn by no fault of their own. They are experiencing a developmental leap in their ability to produce, and express, independent thoughts and ideas. If your child is unwilling to hear your side of the argument and will not discuss the issue reasonable, end it. Inform your child that you will continue speaking with them once the topic of conversation changes.

3. Know when to let your child win.

   If your child has a good argument, back down. Especially if they delivered their argument appropriately (without unacceptable behaviour such as yelling, screaming or having a tantrum). This is a crucial step in teaching children how to argue effectively. If your child proves you wrong, apologize for arguing with them but point out that you were simply explaining your opinion or position. Model the behaviours you wish your child to imitate.

4. Compromise.

   Not all arguments have to end with a decision or opinion granted to one person. Teach your child how to compromise and work with others to find mutually beneficial solutions.