>This implies, then, that if it is rational to discriminate against young people, the same science must say that other groups which are protected from discrimin

>This implies, then, that if it is rational to discriminate against young people, the same science must say that other groups which are protected from discrimination by the State are at least somewhat more mature than young people. There is absolutely no such implication and the rest of the arguments in this article, which use this implication as a premise, become invalid. Other groups that have protection against discrimination do not enjoy said protection on the basis of their maturity or even on the basis of any scientific finding. They enjoy that protection as a fundamental principle, mostly because groups fought for that protection irrespective of any kind of scientific or rational consideration (other than the rational consideration to be protected from violence).