Medieval attendance

There are very few statistics on religious life in medieval times, but there are a surprising number of trustworthy reports from many times and places, and they are in amazing agreement that the great majority of ordinary people seldom if ever went to church. The Triumph of Christianity, page 256

<idle musing>
Interesting, isn't it. I suspect that the influence of the church was largely through the upper class, but have no way of proving that. It would make sense; all the big wigs in the church were from the upper class...
</idle musing>