Don't worry/ Don't you worry?
My group member who's a native English speaker once said "don't you worry" to the supervisor when he planned to deal with something on his own. I got his point but find it interesting about the expression. If I were in the case, I would say "don't worry" instead.
Is there any difference?

Question

Don't worry/ Don't you worry?
My group member who's a native English speaker once said "don't you worry" to the supervisor when he planned to deal with something on his own. I got his point but find it interesting about the expression. If I were in the case,  I would say "don't worry" instead.
Is there any difference?

Answer

Both are identical in meaning.  #1 is more common.  #2 emphasizes "you" and is often used with children.

1. Don't worry.
2. Don't you worry.

Answer

They do both mean the same, but "Don't you worry" can be said in a warmer, more comforting way. "Don't worry" is a little less warm, but not cold or rude in any way.

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