i think a lot of this is because of how society works now, in 21st century America (possibly elsewhere, too...not trying to zero in on American culture, I just don't know much about how other places operate...).
people move. families are not as stable as they once were. community bonds...not as tight. in this context....
how can a church do much, honestly? people work, some work a whole lot...people know about each other, they might be acquainted with each other, but...speaking as someone who has lived in the south my whole life, mostly in small towns...
social connections...real bonds that might help....are increasingly a thing of the past. not that it was amazing when i was a kid (I'm 34, btw), but...things have changed. Add in Barna data that shows that many, many -church goers- don't even believe in standard Christianity 101, and...
blah. its not all bad news, of course. the violent crime rate is at a low point in the US. the divorce rate stabilized. wages are up for some workers. its just...
in the context of a society that's largely disintegrated, or at least...loosened apart, isn't as genuinely interconnected...its really, really difficult for the church to disciple people.