Whenever anyone has a kid, they are excited to find out if it’s a boy or female. If they get a daughter, she will become a cute innocent little daughter when she is young. Father daughter bonding often happens around the ages of 3-10. It is when they start to reach puberty that the fathers start sweating bullets.
For one, they will undergo a large personality change. With puberty, comes strong attraction to the opposite gender. No father wants their daughter to be with another dude, and that is a natural reaction. This is because relationships at that age never last, and often have one thing in mind. A protective father would not be at ease knowing that such things are happening.