Most young children are fearful of bees, even though they have never been stung by one. this best illustrates that fear:

Can be learned through observation

Explanation:

Observation can teach us many things such as when we see that some behavior are not rewarding and we stay away from those behavior as kids and we have seen those which bring rewards and we work towards performing similar behavior.

Young children are very good at observing because their learning is formed mostly through observing others and imitating similar behavior or staying away from certain behavior.

They observe people getting burnt by fire or hot stove and realise that stoves and fires are dangerous.

They have seen people being stung by bees and having swollen faces and they realize bees are dangerous and they should fear them.

Explanation:

maybe your dad left because he wasn't happy with where he was in life. Maybe he didn't like his job or his house and wanted a fresh start. Sometimes people act out of stress and panic causing them to do something that isn't right. You were never and are never the one that caused this to happen. My dad left to and it took me really long to get over it because I thought it was my  fault. But then I realized that it wasn't and I'm doing way better. You'll get over it; I promise.