Butland is England's third-string keeper, despite not making his first team debut for Blues.
Hart told Absolute Radio: "No, I wouldn't want to mentor him, I'd help him in any way possible, but Jack's got his own route that he's going to take and I'm sure it'll be a successful route. I think he knows, I've known him for a couple of years now, he was there at Birmingham, he knows that if ever required I'd be there for him, but I don't think he really needs it if I'm honest. Like you say, he's got immense potential and he just needs someone to let him show it."
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