>>4066240No they don't, if your child acquires a mental disease everything is botched. If a new strain of Ebola that picks on these genes comes around your child could just die. You don't throw children together without knowing EXACTLY what will happen, and we're not at that stage yet. Furthermore, diversity is the only reason life isn't dead yet. Imagine if everyone did this and didn't foresee see an epidemic that played upon these genes. They would be so much more likely to hurt from it. You're playing with fire until we have every gene and its interaction with nature mapped.