^the issue here, is not whether YOU are going to fuck a child,
the issue is that, if you don't want to have sex with a child, and you think it would be wrong, that doesn't mean you have the right to ban a child and an adult, who may or may not be in love, from having consensual sex. you have no clue what their relationship is like, it's private, so you have no right to exert such control on their relationship
in sum, the issue is legalization of the act of adult child sex, and hopefully you realize that if you were raised to believe it's terrible, you surely have some trouble looking at the issue objectively