Create a culture in which it is okay to make mistakes and unacceptable not to learn from them.
The education system is focused on being always right. But this is counterintuitive because it’s better to make mistakes, reflect on them, and learn from them. Being wrong is fine, as long as you learn from it. If you are not wrong, you do not invent. People who are afraid of being wrong do not make bold decisions. That’s why it’s good to make a culture in the company that will be fine with making mistakes