They prefer not to be bothered. Perhaps they suspect something is wrong with them physically, but they would rather not have to deal with it. There are people who do not want to know the truth about their spiritual condition. It might surprise you to know that many of these folks actually belong to some church. They are quite comfortable in their church because there is very little or no emphasis on doctrine.
Truth is determined by personal experience rather than the clear teaching of Scripture.
They end up basing what doctrine they have on some personal experience rather than examining their personal experience by Scripture in order to determine whether or not their experience is valid. In the Scriptures, we find that the Bereans were interested in knowing the truth. In fact they were so concerned about the truth that they did not take the Apostle Paul's teaching at face value. They were not willing to believe it just because Paul said it. They compared his teachings with the written word of God.