I was raised with word the "please" - Allow me to explain, specifically: I was born in Southern Ohio which is primarily of German heritage (as am I); in this part of Ohio most of us say "Please?" instead of the usual response to a question "Excuse me?". (This is derived from the German word and the original use of the word "Bitte" which means "Please")
Most people do not get this at all - When I lived in Texas then moved to N.Y.C. and someone asked me something and I needed them to repeat themselves I would say "Please?"; in both States they would just look at me not knowing what I meant. It was always kind of humorous to me.
As far as being polite. I consider it a necessity. Our civilization has evolved over many Millennium and with it so has our languages and interaction. Myself, and the people I grew up with (family, friends, etc) consider the lack of proper manners a shameful thing.
My ancient ancestors of what was at one time called "Germania" were essentially barbarians, small tribes fighting over forests and involved in every sort of sordid activity imaginable. It has changed much since 100 A.D., obviously. Manners are an aspect of diplomacy, and diplomacy allows for the peaceful settlement of feuds instead of fueling altercations by ongoing hostilities.
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[ White, Diagnosed Aspie Male, 44-Years old ]