You don't get out much, do you?
I remember a very troubling conversation that I had with my grandmother many years ago when I was sharing the Gospel with her. She stated that she did not believe that she had ever sinned, in fact, her exact words were: "I may have swatted a naughty boy a time or two, but I don't believe that I have ever sinned". And then, there is the Orthodox Jewish rabbi I witnessed to once who stated "Since childhood I have not transgressed the law of God".
These are not isolated instances, I have discovered that before anyone can be saved they must first come to the realization of their lostness. Most people think they are just "hunky-dorry", and have no need for a Savior.
You need to get out more often. These people are all around you.
You need to learn how to ask follow-up questions.