Unless one is very gifted, a force sensitive type tends to not know what to do to use the Force. They might have it and display some traits, but they have no skills per say. A lot of the powers in the force is believing you can do stuff that normal life tells you is impossible. One of the reasons they take children is so they don't have preconceived notions about how the world is so they can learn the Force without such restraints on their minds. Luke had issues with that while training under Yoda, that was where the "Do or Do not, there is no try" comes from. It is a matter of believe. You do or you don't. Trying implies you don't believe you can or have doubt, therefore you don't. So force sensitive in the wild that have no teacher or do not witness the Force in action are less likely to gain powers because they are less likely to believe such things are possible.
