On the other hand, for most people, religion has a major impact on both their daily lives and on their epistemology.

What do you mean with respect to daily lives? Attendance at religious services? Restricting marriage prospects to candidates within the religion? In the US, and moreso in Europe, most people don't attend services very often and there is a lot of intermarriage. On a global scale, the impact of religion is higher, and there are subcultures where it is of quite high importance, but I'm not sure what you had in mind.