The message of this movie
Warren Schmidt's senior life sucked for the most part. His wife passed away, he retired and the new boss of the company doesn't care about his merits, his daughter is going to marry a guy he doesn't like. At the end he drives home.
"What difference has my life made to anyone. None that I can think of. None at all."
I've read some of the posts on here, not many, but I think, many people don't understand the message of this movie.
For me, the last scene tells us, what (at least Warrens) life is all about. He reads the letter which answers all his foregoing letters. It doesn't matter if the child care program he donated to is a scam or not, just like it doesn't matter if other people care about your existence or about what you do. As long as you are CONVINCED your life has a meaning, there is a point in everything.
It is a simple message, true, but if you have another interpretation, please tell me. I may be wrong.
Thanks.