is it wrong? no, but we know that after a few generations of it the recessive genes that could carry defects will surface. So, anyone who engages in such activity should be aware of it.
Also it is possible that we are hm, "programmed" (I guess) not to fall in love/be attracted to people we've grown up around. So, if that's true, it's more likely the only people who would engage in that are people who found there long lost [close family member]
Also it is possible that we are hm, "programmed" (I guess) not to fall in love/be attracted to people we've grown up around. So, if that's true, it's more likely the only people who would engage in that are people who found there long lost [close family member]