The greek word used in John 2:10-11 is oinos, which as used in secular terms to refer to grape juice, not wine.
sauce - https://www.laconiadailysun.com/opinion/letters/dont-be-misled-by-the-word-wine/article_005c5366-c884-5a06-8064-f5385ac0c246.html
>Why did Jesus tell "other" John she was his mother?
In the bible it is implied that Joseph is already dead before Jesus had begun his ministry, leaving Mary as a widow.
This event happened when Jesus was on the Cross and about to die, so as to not leave her without any kind of support, gave responsibility for her to John.
one ear, which he gifted to a maid at a brothel.