Mission shaped Church?

This is something I just want to throw out there as a thought, or a challenge, or even as something that is just a little provocative. When I examine some of the stuff written in the New Testament, it suggests to me that Church, whatever that may mean was created of the back of various mssions that took place. This is particularly true within Acts. So why is it that we expect young people to go through a double converstion, first of all to believe in Jesus, but then also into the culture of church which is alien to the culture that they have to exist iin. Shouldn't church be part of life, not something that means us changing as people at a certain time during the week to be in a different place. Thnk of how we gain information, and then think about how information is given out in church. How do we learn things, and then how do people try and teach us at Church. It is just a thought that maybe we could create something around the people who we are meeting, and create something that is relevant for them and where they are at. Thoughts please!!!!!!!