I have. What I have found is that because of tradition, many people take sunday off - especially small business owners who work in their shops the other 6 days of the week.
Sort of like how kids have summers off from school because of tradition? But hey, just because you can't go to some place you want to go to on a sunday (which is becoming more and more rare, these days) doesn't mean you are being indoctrinated into a religion.
tell me - do you still see bogey men under your bed, too?
Just because some Muslims call other Muslims to prayer and you can hear it doesn't mean you are being indoctrinated into a religion.