 But is this price one that has to be paid? The complaint is that age does not always reliably correlate with competence. Thus using age may risk unfairly penalising some who are in fact competent just as it may risk unfairly rewarding some who are in fact incompetent. Moreover the penalties and rewards in question—lacking or possessing rights—are far too important to run such risks. Why then should one not take each individual on her own and determine whether or not she is qualified be have rights?