Once daughters learn that one, they use it forever. My daughter still makes a point of saying it to me several times a day.
Just need to be careful that they don't learn to use it as tool to get what they want. My girl tried to avoid punishment several times with it before she learned it won't work on me. I say "I love you too, but that won't change what's about to happen."
I even wrote her a long letter a few years ago explaining how I can still love her and discipline her too. I explained that it's because I do love her so much that I have to do it...so that she learns and becomes the responsible intelligent woman that she needs to be to have the best life possible.