You might find this blog article interesting.

“The Loneliness of Being a Millenial in Church” by Sarah Howel-Miller
https://sarahshowell.wordpress.com/2017/02/20/the-loneliness-of-being-a-millennial-in-church/

An insight she shares:
“I hear people long for the days when everyone came to church because that’s just what you did. But was the church really so much better off when people came because “that’s just what you did”? I don’t think so.

The solution isn’t to go backward, and it isn’t simply to move forward as is, or even to tweak our message and presentation to appeal to a new generation. It’s to reorient ourselves as to what the problem is. Maybe the problem isn’t millennials’ apathy toward the church—maybe it’s the church’s apathy toward the concerns and passions of millennials, and not just millennials but the world outside the Christian bubble.”

Ouch.