Lilani said:
You seem to think religious concepts being taught in schools is something new. On the contrary: the first modern educational establishments were created by religious groups--the Jesuites, mostly. At the time, the church was the only organization with the money, power, and generosity to offer such services to the general public (or at least those who could pay the tuition).
Now we have public education, which is on the whole much more secular. But private religious schools in the tradition of the Jesuite schools still exist, as you said. The difference being they now have certain secular standards to uphold in order to maintain accreditation and offer degrees that are worth anything. They probably do encourage their students to believe that creationism is "right," but they are required to teach the rest of the important stuff. At that point, it's up to the student to decide which they want to believe. And again, most schools like that are private anyway.