What to do then to develop assertiveness in our children?

• Teach from an early age that: "we all have the same right". Start by expressing them out loud, never think that you are not listening, maybe not your conscience, but I assure you that your subconscious will arrive. At this point, you can use techniques such as the subconscious, when the child goes to sleep or when you are waking up, will be in the alpha state, and everything you say will be recorded in the subconscious more quickly, here Take advantage , and say phrases that reinforce the above.

• Help to name what they feel: feelings, emotions, their desires, encourage them to talk with you, how? Talk about yourself, express yourself and then motivate them to do the same.

• Work to help build a stronger self-esteem with the child: empowering their talents and ideas, with words of recognition, with much physical contact.

• Use rewards after a desired behavior. Reinforcements increase the likelihood that the child will repeat the behavior again.

• Do not use punishments, as they do not work in the long term and can affect the child's confidence and self-esteem.

• Educate with imitation, show the behavior you want to see in your child, this is one of the most effective ways to teach.

• Do not demand reactions or behavior of the child for what is not yet prepared, each child has its own rhythm.

• Listening to your child with attention and without interruption, will allow you to appreciate the child's dialogue and information.

• Very important, and the use of role play has helped me in my personal experience, to show behavior alternatives to the child in specific situations, which promotes assertiveness.

• Do not use generalizations, as they close the dialogue or make difficult conversations that lead to changes and understanding.

• Practice nonviolent communication, and in this way you will teach your child to express himself without violating his interlocutor. Here I leave a link, with more information of this type of communication.
  Link nonviolent communication.

I hope this information is useful and motivates you to investigate more, and help your children develop this tool that will be useful throughout their lives.