It's in the family blood - hunting and fishing people will tell you. "My father's father did it, my father did it, and so do I," is often part of a conversation when asked how someone started hunting. Most of the time it's the same answer with fishing - it's in the blood.
Families that pass down tradition carry on history rich in culture and lifestyles. Sharing passions such as fishing and hunting with children insures, that indeed 'it's in the blood'.