She's 17, he's 31. It would be the equivalent of me leading on a 12-year-old.
I'd say it's less about the age and more about the differences in maturity, in wisdom and experience. Her at 25 with him at 39 is at least a little more of an even playing field when compared to an adult with a confused high schooler, one with a still budding sense of identity.
Lower experience makes it easier to be taken advantage of.
Edvard stated: source post
Do you think I've lived for 31 years without them slapping me in the face and making me aware of them?
I guess the implications of this question wouldn't be a lie if he were older than 31.