Lol I didn't mean same age, I meant over legal age. I think she was maybe 30 something and he was 50 something.
Its more of a sociological argument. You figure a lot of societies are built around the nuclear family. It could destabilize the family if the father and son are competing for the sexual attention of the mother and daughter. OR in the case of this thread where the same sex relatives might also be having sex . .. contented family.
So the taboo grew up more around that problem than a problem with sex-linkd defectives. Actually statistically you have no greater chance of having a defective child with a close blood relative than a total stranger.
Its a social tabo. Much like gay relationships or marriage is a social taboo.
I threw it out there just to present a framework.
What we are really talking about is what people are comfortable with. And a lot of poeple aren't comfortable with gay relationships, let alone gay marriage.
Quote:
Originally posted by valkyrie
I think that arguably in the case of a parent/child marriage, there is a huge imbalance of power and there's a good chance that the parent may be abusive/exerting undue power over the child. In that case, I can see why there would be a safeguard to protect people from that, even adults.
Actually, I think the genetics argument is valid -- when it comes down to it, aren't marriages between close family members prohibited because of genetics -- because of the likelihood that a child born from such a relationship would be more likely to have serious physical problems? Personally, I don't give a rat's ass if brothers and sisters want to marry each other. It creeps me out, but who am I to say what they can or can't do?
ETA: James, I don't think it's possible for a father and daughter to be the "same legal age" -- did he impregnate someone while he was an embryo? 
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