What are the skills that every young person needs?

How can adults (parents, teachers, mentors, etc.) help young people to learn the necessary skills for success in life? While it's true that young people need the care and support from the adults in their life, adults sometimes tend to over-protect their children, to the extent that there is now a meme known as "helicopter parents", which is related to tiger moms, or soccer dads, who are afraid of letting their kids make mistakes.