A human, after a while, will learn how to put their hands on their knees.
And then again, they will learn, when they fall and feel they have made a mistake, how to start again.
And then life will be repeated; they will want new things.
And in the end, they learn that it is craziness to be mad or angry at others.
This time, they can say, “Now I am a real adult, a real mature person; I am a person who knows fair enough.” But still, they will not wonder at seeing something that surprises or amazes them.
If you have not experienced it, you need to learn more.