Having been raised in the church from infancy, and having been a located gospel preacher for 15 years, I have learned that there is a place where visitors and sometimes even members go to die.
I was less than 10 years old the first time I ever went door-knocking, and about that same age the first time I participated in a weekly visitation program. I was afraid. I was weak. I was imperfect. I am still all of these things. The point is that there is really no excuse for not reaching out to people who need the Lord and His church.
There is a place where visitors go to die right in our church buildings. If you wanted to do a study on it in your local congregation, you would locate the spot. Visitors sit there, and nobody speaks to them. They got unlucky.