“If only 15% of Catholics go to Mass on a given Sunday, look around and see how many of them are old. Even the 15% who are there won’t be there for very long.
The solution is simple: we must return to the supernatural realities of the historic faith and evangelize like the Apostles of old. The big difference is that the Apostles knew their targets were pagans and the pagans knew they weren’t Christians. We’re dealing with a huge population of Americans (Catholics and Protestants alike) who are pagan but who think they’re ‘good Christians.’ It is very difficult to evangelize people who already think they’re fine just as they are. We don’t know what we don’t know, and the vast majority of poorly catechized, lazy and worldly Catholics aren’t aware that there’s anything wrong.”
— Fr. Dwight Longenecker, writing here.