Family tradition
Grandfather kept a loaded 12 ga behind the kitchen door for 40 years (yes, with children in the house, and never had any problems) Kids were raised to understand. Father hunted deer, us kids hunted squirrels, rabbits, woodchuck, pigeon, pheasant, quail, etc., pretty much everything that was either good to eat or a pest.
Mom was as good a shot as anybody we knew, and destroyed her share of vermin with a .22 rifle.
Dad also taught NRA Hunter Safety Courses, and his friends came to our place to sight in before deer season. So I guess you could say I grew up with guns.