Oh yes, my friend, from the very childhood we learned to respect the opinion of our child, not imposing our own taste and decision, offered him a choice from the moment when he became able to do it. We tried, under certain restrictions, to grant him this freedom. We go to a kindergarten, and which way - he decides. What should he wear - within the limits of the weather, which on the street - he chooses himself from the proposed by us. Naturally, the child can make a choice only after he understands and evaluates each of the options. Our task was to find and offer both options that were initially attractive and safe for him.
And now he was learning to defend his opinion. He understood perfectly well that Papa and Mama possessed authority, strength, and perhaps even realized that they were right, but it was important for him to do as he saw fit. It does not matter if this option was a mistake or not, he wanted to make mistakes and decide for himself how it would be better for him. For him, it was important that adults understand that next to them is not a kid, but an equal in the level of a friend or friend. The child had to see himself in the new quality of an adult. Thank you @donkeypong