Answer:
The message she leaves to young people is that they remain hopeful and focused on making the world a better place.
Step-by-step explanation:
In her last speech, Michelle Obama recognized the importance and strength that the young American has in society and especially in building the society of the future. She says that as young people will be the main pillar of the country's future, they cannot be discouraged and stop investing in progress and social benefit. For her, all young people must remain hopeful, aware of what they are and what they want and dedicated to activities that will guarantee a better world. We can see this through the lines:
"So that’s my final message to young people as First Lady. It is simple. (Applause.) I want our young people to know that they matter, that they belong. So don’t be afraid — you hear me, young people? Don’t be afraid. Be focused. Be determined. Be hopeful. Be empowered. Empower yourselves with a good education, then get out there and use that education to build a country worthy of your boundless promise. Lead by example with hope, never fear. And know that I will be with you, rooting for you and working to support you for the rest of my life. "