We always knew that Donald Trump was a hands-off parent. He’s barely been involved with the lives of any of his children, other than to pose for some pretty disturbing pictures over the years with his oldest daughter.

But it’s an open secret. For some reason he doesn’t take the flak that other dads might take for being essentially detached from their own family life. Some chalk it up to him being rich and entitled. I know Barack Obama does.

I actually think it’s because Trump doesn’t have room in his head for anyone but himself. I don’t think he ever has. Regardless, whether it’s the fact that he never bothered to read his wife’s memoir, or his bungling of his forgotten child’s big announcement day, Donald just doesn’t know the first thing about the people he’s supposed to love the most.

That’s why it was no surprise when the aging golfer went on Patrick Bet-David’s PBD podcast and revealed as much.

He was asked whether Barron had been dating anyone since he went away to college. You know, the kind of question literally any parent would know the answer to if they gave an airborne turd about their kid.

“He’s a good looking guy. He’s very smart. He’s a good student, and all that. He goes to a great school and does really well. And he’s a very nice guy. You see that,” said the man who got his practice dodging things when he invented his own bone spurs. “I’m not sure he’s — I don’t think he’s had a girlfriend yet. I don’t think so.”

I don’t think so. Let’s ignore the fact that Trump revealed deeply personal information that some young men could find embarrassing. But does Trump even know?

Good grief. You know what Donald DOES know? “He doesn’t mind being alone, but he’s somebody that gets along with people.” Oh, you mean he doesn’t paw at the door when he sees you coming like a dog who hasn’t seen his owner for an entire deployment?

I guess that’s an unfair comparison. Mostly because Trump’s never had a dog, so he wouldn’t know.

The sad part of it all is that, as usual, an “insider” knows more about Donald Trump’s own kid than he does. A former classmate of Barron’s spoke to the tabloid journal Daily Mail about the former Third Son, and described him as funny, but a bit of a loner. They said Barron “never attended football games or dances,” “met up with” friends, or “went on dates” during his entire time in high school.

He also didn’t eat with the other kids in the cafeteria, and didn’t even appear in the high school yearbook.

Some of that is to be expected, of course. He wasn’t even enrolled under his real name, instead going by “Jack” because of the security presence required around him from the Secret Service.

In fact, the insider friend commiserated with Barron: “I’m sure he had fun in his own way but it was a bit of a shame that he didn’t get to have a normal high school life like everyone else.”

But it had to have been weird.

“He had multiple agents who would rotate throughout the day and there was always one with him wherever he needed to go,” the source said. “The agents would stand right outside the door during class. If he went to the bathroom they would go with him and wait outside.”

I personally see more than a little irony in our recent report that Trump wanted more kids with Melania, since he doesn’t even pay attention to the family he does have. Thankfully, she nixed that idea.

Lord knows the last thing we need is yet another Trump.

First we saw Trump’s oldest three kids get seared in court over their embezzlement from a children’s cancer charity. Then we were privy to the astronomical receipts from his middle girl’s lavish vacations in Europe. Soon we saw Ivanka get caught up in the scandal of getting voting machine patents from China, and her older brothers were even held liable in the same proceedings that netted the patriarch of the family 34 felonies in New York.

For the longest time, Barron seemed like he might turn out to be the good egg of the family. But maybe he never socialized or had a girlfriend because of the behavior that the public never knew about until he was an adult.

As a child, he simply looked precocious when he’d talk back to his mother. Then we saw reports that he had hurt small animals, threatened classmates, and even slapped his nanny when he was young.

In fact, I’m not sure Barron would get many hits if he filled out a dating profile. It’s anyone’s guess — including his dad’s.