I like the adoption feature and use it regularly. I also think that they implememted it correctly with adding adopted children to the family tree.
@Hoverael Nothing against your playstyle, but I would think it very odd if you were able to adopt children as future spouses for your offspring. As IRL children who grow up together should be considered siblings. I guess I would not have an issue, if they made it optional to add the adopted child to the family tree, but I would definitely never adopt that way because otherwise there would be romantic options later on that I would not want to show up in my game.
