Standard-bearer of a nation

Is the answer to the question correct? Any other suggestions will be appreciated.

Question

How is the youth standard-bearer of a nation?

Answer

Youth is the standard-bearer of a nation. If their energy is channelized in proper direction, they can bring a positive change in the social, political, and economic fabric of the nation. The height of self-sufficiency and independence of a nation lie on their shoulders. They are the symbol of hope and future of a nation. If they are ready to contribute to the progress and prosperity of their nation, it will rise as a mighty power which no nation of the world will be able to subdue.

Thanks in advance.