What is the meaning of Bạn?

you, a young person in your twenties

you, an unspecified person who is reading this book, viewing or listening to this broadcast, using this product, etc., regardless of your age or gender; compare ông (“you, a middle-aged or older man”), bà (“you, a middle-aged or older woman”), anh (“you, a reasonably young man”) and chị (“you, a reasonably young woman”)

you, a peer of mine