Debate Guide: Cognitive ability = consent
Children/Minors have not yet reached an adequate level of cognitive development to engage in sexual activity. They cannot consent because of this.
1. The underlying assertion about cognitive ability in all minors is problematic per se, as it seems that the human brain is adapted to its full evolutionary potential in early puberty.
2. The arbitrary concept of "informed consent" is highly problematic for ethical discussions about policies, as insisting on it renders CSA empirically invalid as a concept. If you want to quickly close down the debate on the basis of this dilemma - simply follow the CSA dilemma argument template.
However, entertaining mental inferiority, this argument relies on the assumption that sexual intimacy is especially complicated and hard to master; something requiring a higher level of cognition. Why do we so freely and unconsensually, physically abuse our children "for their own good", or cart them off to "our" church for indoctrination as opposed to our neighbor's? Are children able to consent to all of this? If not, why not just allow them to decide not to go to church or religious school? What about being allowed to shoot a gun - plenty of people seem just fine with that?
A better approach would be the deprogramming of sexual taboos and unnecessary infantilization/oppression of young people and children. This is something your nativist argument fails to identify or consider.
Ableism (egalitarian argument)
Using this argument's logic, one would be forced to question why some geriatrics, people with low IQs and the mentally ill/disabled should not be barred from experiencing sexual pleasure. Indeed, extending the cognitive argument yet further, age of consent laws would themselves be called into question, as the education system would provide us with a better arbiter of "consenting ability" than an arbitrary cut-off age.
If you are to apply an extreme social justice model, it is also ageist to describe the cognitive abilities of prepubescent children as inferior, even if scores on problem solving tasks are lower. Why not embrace a SocJus conception of a young person's abilities as best adapted to their age, needs and level of knowledge? Remember that IQ tests were set by western adults and tended to classify the learnings and innate abilities of successful western older people as superior, whilst neglecting other virtues.
- Against: Power disparity - A similar argument, based on differences within a relationship.
Excerpt Graphic Library
While our research sections contain more information on the ethical issues described here, these may help in character-limited debates.
Bruce Rind on CSA concept (in)validity
David Finkelhor (Abuse Guru) and his failed moral circular argument
Terry Leahy: Absence of an ethical argument against age-gap sex
Paul Okami on Power Imbalance argument (from Peer Commentaries on Green (2002) and Schmidt (2002))
Review of Sandfort and consent
Scott De Orio on Queer Identities that don't fit the model of consent