Cross national polls on the evolution issue always cause me to be embarrassed, and sometimes even a bit discouraged, about my nation. Beyond the religion thing, I think it reflects poorly on the relative quality of our schools. Clear thinking is just not job one.
By far, it's the families and churches. The schools, except for the religious ones, are more than doing their part. It's not the fault of teachers that parents and witch doctors have told children to close their eyes and not look at the man behind the curtain.
There aren't any witch doctors involved, just priests and other ministers of religion who should either know better or not hold their pastoral offices.