Is There a Gap Between 25 and 60?

I think once the frontal lobe has developed, which we tend to think is around 25, 25 to like 60 is probably a large age gap that we would think is strange. Even up to 20 years ago, it doesn't bug me. What does bug me is under 25. It's like you want to be with a child and that's not legal. Like Billy Eilish's boyfriend is 10 years older than her, but has known her since she was 15. You know what I mean? That's weird.