There's two reasons for the rule. One is courtesy in that you put the other person's name first (and that's the one most people will tell you), but the second is more subtle.
"I and" is a very ugly sound and relatively hard to say. I suspect this is why people often use "me and", even though it is technically incorrect.
You will almost never hear "I and" in spoken speech, and the only reason you might see it in writing is becasue the writer hasn't tried saying it aloud.
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branchandroot
(no subject)
Date: 2004-07-04 11:34 pm (UTC)"I and" is a very ugly sound and relatively hard to say. I suspect this is why people often use "me and", even though it is technically incorrect.
You will almost never hear "I and" in spoken speech, and the only reason you might see it in writing is becasue the writer hasn't tried saying it aloud.