How does the government recognize the role of the youth in nation building?

Governments recognize the “important role of youth” in nation building because youth are the most susceptible to indoctrination, and have the least power of any group in society. Accordingly, the State (the thing you think of as government) can indoctrinate youth to be xenophobic nationalists to support the aggressive aims of the State. Once indoctrinated, youth will willingly join the military and put themselves into harm’s way. Youth will also willingly and enthusiastically join political organizations, and do the menial work. And when youth are lost— that is, spent on the field of battle, or alienated from the political process, the loss is easily absorbed by the State because the youth have accumulated little in the way of assets and power, and there is an abundant pool to replace what is lost. So yes, the State may well recognize some value and potential in the youth of its nation, but the State values youth mostly because they are convenient cannon fodder.