The father being 30+ has absolutely been taboo for at least a century.
I mean, I honestly wish you were right, but that was 1975.
It was 1981 Ted Nugent released Jailbait:
Well, I don’t care if you’re just thirteen
You look too good to be true
I just know that you’re probably clean.”
He was 32 years old, and one of the largest rock acts at the time.
And Courtney Love said she performed oral sex on him when she was 12 around that timeframe. (Not really sure how to phrase that, she says it was consensual, but it was rape)
It's wasn't even an open secret, it was just open knowledge.
It's important to understand it, because that's why so many Republican voters excuse it.