I guess I would have to say I don't necessarily have issues with some forms of incest, I only do in our current social atmosphere. Also I do in the one I suggest, where the age of consent only applies when no guardian consent is present (meaning consented relationships are allowed with guardian consent, as we do with most activities currently), incest would still be at the mercy of the issues you stated. Note that my views on guardian consent and age of consent are temporary solutions to work into society as it is. A more youth rights oriented society would allow much greater freedoms for children because of different social attitudes.

I am even more radical than I thought I suppose. Thanks for the help.