I knew this would be coming, and I am prepared to answer. I will also put this under read more.
Honestly, your very first sentence is already problematic on its own. Do you understand that you're saying a pedophilic relationship is 'interesting' and 'ambiguous'?
Alright, I may not rant long enough, but first of all, you need to understand this: if a person, who is 18 or older, engages a person who is younger than 18 and forms a relationship with them, is a pedophile. The story that Pandora Hearts is set in is obviously somewhere older than the 19th century at least, which is when the very term was established. It is also a century where women did not have any rights and a lot of more, so to say, "ambiguous" things happened. This is exactly why the fact that Oz is considered "of age" should not at least influence this at all, because it is not that century people that are reading it. We are in the 21st century, where such a thing is illegal and punishable by law.
Do you realize that I am saying this because it is not okay to normalize such a relationship? First of all, there is a certain percental rate to the relationship thing going on: the more you age, the bigger the gap can be. It is perfectly fine if people who are older to form relationships with each other. What's not okay is to say it's perfectly fine for a child to have such a gap between themselves and an adult.
The line where you said it woud be illegal is what set it from where you're already justifying it. If it's illegal, it's not justifiable. There are kids Oz's age who can also think they are in love with the older person, and the older person might think so too. If the adult would genuinely care though, they would at least wait, which is also at the very least flawed. The adult themselves, were they to find themselves in love with a teenager, are at fault. The argument which could come up in such sentences as "but what if it's true love?", "they care about them though!" are not acceptable. A minor's safety is first priority over everything else.
Oz is a smart boy, but no matter how intelligent or experienced he is, he cannot make up for the time he has not yet lived. There are many teens who fall into this trap, and later on suffer from ptsd and similar consequences. Such a relationship is not on equal grounds, nor will it ever be no matter the circumstances. If their love is so strong, they can afford to wait at least the few years they need and test the strength of it along the way.
The bar is already set low enough at 18. A relationship between a minor and an adult is not healthy no matter what. It's not unusual, as you say. If someone is genuinely interested in them being in a relationship, they may as well write it when it's not under the bare minimum of 18.
I am not a native English as well, so you may or may not find some mistakes here as well. Please consider my viewpoint of this, because it's super important that this fandom accepts these facts and stops thinking it's alright.
