Imagine you're 5 years old and your perfect world is shattered when your mom leaves.
Your dad provides you with a stable, loving home, and you stay in the same house and things mostly stay the same. Your big brother and you still do all the things you did before, and you go on to live much as you always did.
When you are 8, your mom gets married and has another baby. You still get to see her but you still live with dad in the same house and go to the same school. Dad has his mechanic's shop in your mom's parents yard, so you see lots of grandma and grandpa, and mom comes to visit, too.
Things aren't as perfect as they once were, but you are happy enough, and your dad is a wonderful father, providing you with lots of love and laughter.
Imagine you're 10 years old and dad leaves on his motorcycle to go to town to visit friends. A woman in an SUV turns in front of your dad's bike on the highway and he can't avoid her vehicle.
Imagine being fatherless when your father was your whole world.