I am poor and I am happy - most of the time, there are still things that make me unhappy, but they don't have anything to do with money ... I guess it's just a matter of values. If you value money and saving or spending it, it might indeed make you happy. If you value other things you can't buy, you don't need money to be happy ;-)
And yes, I want to be happy when I am older - not necessarily rich ... Money makes a lot of things easier but it won't buy me what I really need.
(I know who you are! *looks menacing*)