It really depends on the school and the AP subjects. Even if you receive AP credits, it does not necessarily mean they are useful credits. It is only useful if that can get the student higher placement, or fulfill certain pre-req or elective requirements. Having too many useless AP credits may lead to upperclassman tuition rate for more semesters that needed. My D got 33 AP credits and another 5 credits transferred from a CC from her summer class. A few of those AP credits did not contribute to her graduate requirement particularly after she took some more electives that are interesting to her. With the curriculum requirement, she may only graduate one semester early due to the pre-req schedule. However, she had the option to study aboard or co-op for a semester without affecting her graduation schedule.