it could be either. it depends on how you want to interpret it. going strictly by the grammar (because of the Can), it would be interrogative. but going by the intended meaning, it could be seen as imperative (a nicely worded order). are you looking at syntax or semantics?
The american dream is the belief that through hard work and perseverance we can all achieve greatness and be successful. This is possible because success is all dependent upon one's mindset. What one considers success may differ from what another views it to be. so we can all reach our own american dream based on our individual goals.