There is always a chance this will happen especially the older a child becomes. Their interests can change, they may want to spend more time with their friends and in school activities. They may not see this as something that they enjoyed doing any longer. Again, don’t push them to go fishing, accept their decision. In time this could change back as sometimes kids go through rebellious ages but eventually come around to wanting more quality time with their parents once more and going fishing certainly qualifies as such an experience.