The first reason you may say you would not attend the church is theological. Does what you believe match with the church? You may not agree with everything, but should probably agree with most of what is taught. You also could have a disagreement on how to approach theology. Our staff meets everyThursday morning at 8am for Theology (a real killer after having HS ministry the night before). I don't always agree with the conversation, but I am absolutely on board about the approach and the openness to discuss issues related to culture, the Bible and our church.
Second, some of us may be used to, or desire, a different style. Do you feel comfortable and enjoy the style of your church? Does it fit your personality? At first, this might sound a little shallow, but let me unpack it a bit. I always am encouraging our students to bring their friends. We work hard at creating a space that they would feel okay inviting their friends into. Do I feel the same way? Do I feel comfortable inviting my friends to the church that I am serving in? If not, I think this could be a problem. Another way to look at it is for those of us who are married and have kids. Do our spouse and kids enjoy coming? If they are not committed to coming and investing into the ministry of the church for whatever reasons, I think we need to ask the question, "Would I/we be coming to this church if not for the paycheck?"
Two more reasons to ask the question will we posted tomorrow.