Also, what does being attracted to 25 year olds have to do with being careless and irresponsible? I fail to see the association. It's not like 25 year olds are teens, 25 year olds are often married with careers. So being "mentally 25" doesn't really equate to being irresponsible or careless.

What's funny is that if this was about a 25 year old male trying to hook up with a 19 year old female, people would be portraying the 25 year old as a "mature adult man who is not on the same level as the naive teen girl." But when it's an older male trying to get with a 25 year old female, the 25 year old is a young immature girl and the older man is immature for being interested in her.