I'm sorry, if you actually grew up with Mr. Rogers, then Tom Hanks is absolutely not believable in that role. No one could be. His face is all wrong.

But here's what's important: Fred Roger's Nine Rules for Talking to Children
https://www.theatlantic.com/family/archive/2018/06/mr-rogers-neighborhood-talking-to-kids/562352/

@1, I did grow up with Mr. Rogers. And I'm finding that Tom Hanks as Mr. Rogers is growing on me. My first reaction to the trailer was similar to yours: Hanks' voice just doesn't sound like Rogers' very distinctive voice. But the essence of Mr. Rogers isn't just his voice. It is his whole persona, his whole being. And that is where Hanks grows on me in the role. Mr. Rogers was genuinely one of the kindest gentlest people ever on TV. Hanks has long been known as one of the nicest guys in Hollywood. Even if the voice isn't quite right, there are probably very few actors who could realistically portray Mr. Rogers genuine kindness better than Tom Hanks.

@1: The face is wrong? The job of an actor is to make up for physical differences by portraying the character so compellingly to achieve a creative suspension of belief.

@3: One doesn't preclude the other. See both.

Great link, treacle: “What Fred understood and was very direct and articulate about was that the inner life of children was deadly serious to them,” said Greenwald.

Per the pamphlet, there were nine steps for translating into Freddish:

“State the idea you wish to express as clearly as possible, and in terms preschoolers can understand.” Example: It is dangerous to play in the street.

“Rephrase in a positive manner,” as in It is good to play where it is safe.

“Rephrase the idea, bearing in mind that preschoolers cannot yet make subtle distinctions and need to be redirected to authorities they trust.” As in, “Ask your parents where it is safe to play.”

“Rephrase your idea to eliminate all elements that could be considered prescriptive, directive, or instructive.” In the example, that’d mean getting rid of “ask”: Your parents will tell you where it is safe to play.

“Rephrase any element that suggests certainty.” That’d be “will”: Your parents can tell you where it is safe to play.

“Rephrase your idea to eliminate any element that may not apply to all children.” Not all children know their parents, so: Your favorite grown-ups can tell you where it is safe to play.

“Add a simple motivational idea that gives preschoolers a reason to follow your advice.” Perhaps: Your favorite grown-ups can tell you where it is safe to play. It is good to listen to them.

“Rephrase your new statement, repeating the first step.” “Good” represents a value judgment, so: Your favorite grown-ups can tell you where it is safe to play. It is important to try to listen to them.

“Rephrase your idea a final time, relating it to some phase of development a preschooler can understand.”

Maybe: Your favorite grown-ups can tell you where it is safe to play. It is important to try to listen to them, and listening is an important part of growing.

Anything to exploit the dead to fill those Hollywood coffers! Am I right?

you spelled coffins wrong