Cliché, Not a Cliché?

I don’t think I’ve ever said to someone that something I’ve heard has been refreshing.
I’m not sure I know what that actually means.
I’m pretty sure it’s not the same thing as reloading a browser page.
I have never said to another human being, “It’s refreshing to hear that.”
Let “that” be a blank you fill in with words like
“such honesty,” or “such original thought,” or “recognizable English spoken in Scotland.”
Neither has anyone ever said anything like that to me directly,
not about what I’ve said, or what I’ve thought, or what I’ve done.
(I hope this does not reflect poorly on my intellect or behavior?)
Nor have I heard it casually uttered by a diner at the next table
or by someone occupying a stool farther along the bar.
The only time I hear someone remark that something said, or thought, or done has been refreshing
is in the movies.
And they’re acting, so they’re not talking about what they themselves have experienced.
It’s merely a character parroting a scripted line
undoubtedly written by someone who may have never known what it felt like
to be “refreshed” by what someone has said, or thought, or done,
a line that probably means nothing to the audience
because they’ve not a clue about how that might feel.
So how did this cliché become a cliché when no one ever uses it?