Stage 3 Churches in Stage 4 Scoiety?

I have been thinking.  I have been wondering what has been happening to church attendance over the years.  It seems that in the mainline denominations, the attendance has been dropping.  We keep coming up with ideas as to how to bring more people into the churches.  We come up with ideas about how to grow the faith of those who are there.  We keep coming up with plans.  But I wonder if we are doing exactly the right thing and that we really shouldn't be getting so worried.

What if we look at society through the lense of "Stages of Faith?"  What if what we are seeing is exactly what is to be happeing?  What if we are going from the Stage 3 faith on to Stage 4 and then into Stage 5?  If we ARE growing as a people/society, shouldn't the attendance in our congregations drop? 

I think the major point is that we in mainline denominations to stand strong and to not be afraid just becasue we see our numbers dropping.  We also need to NOT drop back to earlier stages of faith trying to regain past glories.  If the collective faith development is growing and maturing, then to try to move backwards will be insulting as least and damaging at worst.