Etiquette?

In this day in age proper etiquette has changed some much.  Actually I do not know how much etiquette has changed and how much of it is just forgotten.  I admit sometimes I myself do not follow proper etiquette.  Hats are suppose to be taken off indoors, yet most of the time they are left on.  What happened to holding the door open for the person behind you?  Are we regressing to a simpler peasantry life style?
I have learned one thing, if we want to get ahead in life we have to behave like the class we wish to be at.  This does not mean to go buy sports cars when you cannot afford them, what it does mean is if you are behaving like your class you will be stuck there.  If you think it is fine to wear backwards caps and behave disrespectfully in public places, then do not turn around years later and wonder why you are still stuck at that lower class.  However, if you go out of your way to behave with more class and learn proper etiquette, maybe ever seek a higher education, then you will be on your way to moving up in the world.  It does not matter what class you are in as long as you are happy.
I know many of us many think that in America we do not have classes and cannot get stuck in them.  We do have classes, we just do not have a proper name for them.  There is always the possibility to move up and down the classes unlike other cultures.  Just like a mountain it is always easier to fall from classes than to climb up.  The hard work will help build character and get you further in life.
Again it really does not matter what class you are in life just as long as you are happy; however please use some proper manners when in public and around those of a higher class.