Evelon has always been an extremely lax roleplay forum, not confining users to any real rules when it comes to world building around your characters. Some users even have characters from many different universes, so to speak, in spite of roleplaying them all on the same forum, in the same roleplay areas. So I'm curious, what rules does everyone have with their characters and plots?
What sorts of things are canon for your characters? Are they all primarily roleplayed in one world (one universe), or different ones? Are they roleplayed all in the same time, or different times? How do you handle some characters having pet forms and human form? How do handle same gender breedings? What is considered "inbreeding," by your standards? Aaaand so on.
Since I'm starting the thread, I'll give my own canonical ideas, that basically apply to all of my characters.
Over all, almost all of my characters are roleplayed in one world. There are definitely some that originated from another world, but, mostly, they're all found in "Evelon," and in the same time. (I don't play past and future, really, only relative present time.) There are a few exceptions, but usually in the case of the character being able to move through more than one world, or the worlds being connected. That said, nearly all of my characters have the chance to run into one another, and could be roleplayed in the same roleplay, even if they do not all know one another.
Having two parents of the same sex, totally 100% genetic from both, is totally a reality with my characters, and acknowledged by them. I have actually roleplayed one of my male characters pregnant before. My idea of how the LLP and ELE works is that it temporarily equips one partner, or even both, with the organs they need to fulfill the necessary role when it comes to childbearing. Mind, it does not change their appearance, otherwise. As in, a guy doesn't suddenly look totally like a woman. That said, I also operate on the idea that there is no rules when it comes to marrying/lifemating with others, so any gender can freely be with another.
For the most part, for age and when someone is legally an adult, I operate with non-American (US) rules. For my characters, I usually consider 16 to be legal adult age, rather than 18. Of course, this can vary, sometimes, such as with the plot of my 15 year-old-king who, in his kingdom, is of marrying age.
When it comes to breedables and "inbreeding," and with lifemating characters, too, I am totally comfortable with first cousins breeding/lifemating/marrying, so sharing a grandparent if fine by me. It is accepted in some countries, and acceptable in the US, upon either being past reproductive age or being sterile, so close enough. And adopted siblings? Yeah, I'm totally fine with that, too.
Most of my characters retain both human (or human with ears, tails, sometimes a few other features) as well as animal forms and can switch freely between the two. In some cases, though, I have characters that almost entirely stick to one or the other, some that are cursed to stay in one form, or some that are just unable to switch back. In the situation of characters giving birth, the children are born in whichever form their parents were in at the time of giving birth.
Although, then, there are also creatures that are sentient on the same level as "humans," and those able to transform into humans without being able to speak, and there are also creatures that are not sentient to the same level, some of which are eaten. There has been some strange evolution going on. xD;
For most of my characters, some form of magic and such is an accepted part of reality for all of them, although perhaps not widely known in all circles. It could be safe to say that the general populace, all those NPC characters that most of us don't actually roleplay outside of needing a cashier or some such, are without magic and don't suspect a thing. Or, maybe they are somewhat aware, but are living the sad reality of not being magical. Not all of my characters are magic or have special abilities, so.
Aaaand that is all I can think of, at the moment. Anyone else want to chime in?