No, it's not, if you just forget what you were told.
TBH, that was probably Biden, and Reagan at least toward the end of his second term. There really should be an upper age limit on federal offices.
TBH the president should primarily be relying on trusted, competent advisors that they’ve surrounded themselves with. They can’t possibly be experts in enough areas to make unilateral decisions.
Which is probably why Biden didn’t attack Iran.
You're idealising one government rule to stop other government stupidity. The fact is that enforcing that kind of thing is meant to be the electorate's job. Instead of howling these people out of office as the spent, bought-and-paid for geriatrics that they are, they keep electing them instead.
Roy Cohen School of never hearing never believing anything you don't want to hear, making up what you want to believe in. And never ever ever reassessing or letting anyone else or any other fact impune on your perfect carefully maintained and manicured fantasy.