What is the major theme of this novel? Why is this theme important to a teenager living in 2008?

The major theme of this novel is that age is not an obstacle. I chose this as my theme because of Ender. Ender, at a young age went to battle school, beat up and killed people, became a commander, and destroyed the buggers.
This theme is important to living teenagers in 2008 for various reasons. The first is that teenagers these days tend to think that they are not capable of doing certain things. For example, these days teenagers are wanting to change. They start heading towards smoking and drinking. They want to but they can't. They are not old enough to buy those things.Teenagers always wish they were a bit older. Teenagers think that when they are old they can do everything. They are wrong. Just li9ake the novel, teenagers can be like Ender. They can be smart and athletic. Teenagers just need to try. If they become older, they will know that when they were young it was way better. Once they are old they cannot return to their young state. They become less active and cannot exercise that much. This theme doesn't go for only teenagers. It goes for everyone.

Another reason this theme is important for teenagers is because some think that the teen years are the part where you enjoy life the most. That is wrong. As you get older, you get to know more people. You get promoted to higher positions in jobs. You get married and raised a family. Almost all of these things happen after the teen years. Teenagers shouldn't just live the way they are. They shouldn't just look at their present and regret their past. They have a lot of years to live. They should look foward to their future. Life isn't just about the beginning. It is also about the middle and the end.