In Nearly Every Country, Young People Are Way Less Religious Than Adults
If you go and look at the evolution of religions you can see a pattern in the reduction of gods. First you have a god for just about everything, then a new religion comes along where you have a god that controls a group of things. Then after a while it dwindles down to just a single mono-god. So the next logical progression would be to have no gods...
It's a trend of the times... ever since the 1970's young adults have been becoming less inclined to be religious. The churches fill with grey-haired flocks who every year decrease in numbers untill the benches are half-empty.
Where I live the government is considering schemes to keep some village churches as monumental buildings, since in many places the faithful are no longer generating enough money to maintain the buildings.