I'm from the UK.
I don't care about social conventions, I find it much more acceptable for an older woman to have a relationship with a younger man than with a man who repeatedly cheated her, kept her in an environment of continuous mental, verbal and emotional abuse, threats and subjected her to constant humiliation, intimidation and other forms of coercive control.
I'd rather not get into making any judgments on what should be acceptable or should not be acceptable in society. I've learned over the years that discussing politics and religion are the best ways to ensure you end up in an argument.
I'm only describing the way things are here - not trying to say how things should be. I will say this: I haven't always been happy with the way our society's conventions have impacted me. For example, when I was in high school, there were several times when there was a girl I wanted to ask out but I found out she already had a boyfriend - a boyfriend who was one or two grades ahead of us. So when, for example, I was in 9th grade and wanted to ask out Tracy, and I found out Tracy was going out with a guy who was in 11th grade, it sucked! I felt like even if she eventually broke up with the guy, then I'd be competing against guys in 11th or 12th grade for the affections of this girl who was in 9th grade, the same grade I was in. I've always liked for there to be as little age difference as possible between me and whichever girl I was dating. I found that way we had more in common, more to talk about, and could relate to each other better.
Now, many years later as a middle aged adult, none of that impacts me at all. I can look back and laugh about it now, but still I remember what it was like back then, and I was not happy at all to find out that girls tended to like older guys! Ha ha!
BTW, as far as I remember, when I was in high school, girls either dated older guys, or guys the same age. I literally don't remember anyone I knew in a relationship where say, the girl was in 12th grade and the guy was in 11th grade.
When I was in college, there were just very occasionally girls dating guys maybe one or two years younger than them, but never more than 2 years as far as I remember, and even then, for a college girl who was a sophomore to date a guy who was a freshman was something you hardly ever heard about. Things could be different today for college kids; I only know about what it was like in my generation.
Speaking of school, there have been a few scandals in the public school system in the USA where a female teacher was found to have been having a sexual relationship with 15 and 16 year old guys! If it were the other way around, people would say about a male teacher having sex with his teenage female students - lock that bastard in prison and throw away the key! But with a female teacher having sex with a 16 year old male student, I often hear things said like "What a lucky kid!" or "I wish that had happened to me! Why didn't I ever get teachers like her"? You might say that's a double standard and you'd be absolutely right! But the way things are and the way things would be if the world were a completely fair environment are not usually the same.
I believe that girls do mature at an earlier age than guys do though. I think we guys take longer to begin to act as mature adults than girls do. Just my observation.
EDIT: it is 7:36 PM and as of now, the leader in the poll for lamest character is James Beaumont with 7 votes.. Lee Ann de la Vega is in 2nd place with 6 votes and Laurel Ellis is in 3rd place with 5 votes. This is a close race!