[Grammar] Why subjective pronoun "I" follows all pronouns in a sentence?

[Ayon Khan]

Why this sentence is incorrect? - I and you can go there.
And why this sentence is correct? - You and I can go there.

 

[Rover_KE]

Welcome to the forum, Ayon Khan.

Why is this sentence incorrect? - I and you can go there.

And why is this sentence correct? - You and I can go there.

Please note the correct way to ask your question.

They are both grammatically correct, but as a matter of politeness, the convention in English is to put ourselves last in a list of pronouns.

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I see you posted the same question here.

Please do not post the same question simultaneously to more than one forum. Doing so wastes our valuable time. Instead, post your question to one forum and wait for replies. If you're not satisfied with those replies, you can try another forum, but please indicate in your thread that you've already asked the same question elsewhere (provide a link), and outline why you were not satisfied with the answers you received already.

(teechar)