Really?
I'm not really talking about laws requiring people to go to church (though this has certainly been done in a lot of places), but things like:
- Social and familial pressure to attend church/temple/whatever
- Depending on connections in your congregation for business or career success
- Having your social life tied to a religious community
- Social norms and expectations around religious adherence being part of an upstanding citizen
It's harder to ban SBNR - or atheist - members of the family from Thanksgiving when there's 5 of them than when there's only one.
And being an Orangeman doesn't help you get a job as a firefighter anymore, but when my grandmother was little, it would have been effectively a prerequisite.