I’ll go first: “You have to have children when you’re young,” told to me when I was in my late 20s, with no desire to ever have kids, and no means to support them, by someone divorced multiple times with at least one adult child who does not speak to them.
Also: Responding to “How do I deal with this problem?” questions with “Oh, don’t worry about it, it’s enough that you’re even thinking about it!”
On dating and relationships: “Just be confident.”
It’s not wrong, but spectacularly unhelpful. I mean, a brain surgeon has to be confident to go cutting into somebody’s head, but clearly that’s not enough, right? Confidence as a romantically-attractive quality is a very particular (and peculiar) performance. Going to a party 110% certain of one’s own value, sitting in a corner with a confident set of one’s jaw, and silently waiting for the ladies to form a queue is…
…sufficient, apparently, because you just to be confident.