I can offer some common reasons why someone might not knock on a door before entering a bedroom:
Unfamiliarity with boundaries: Some people may not be accustomed to knocking on doors before entering rooms, especially if they grew up in households where this practice wasn't emphasized.
Lack of privacy awareness: It's possible that your father doesn't fully understand or appreciate the need for privacy in certain situations.
Cultural or family norms: Different families have different norms and rules regarding privacy and knocking on doors. In some households, knocking on the door might not be considered necessary or may even be discouraged.
Forgetfulness: Sometimes, people simply forget to knock on doors before entering, especially if it's not a habit they've developed.
Sense of ownership: If your father views the entire house as a shared space and feels entitled to enter any room at any time, he might not see the need to knock.
Communication breakdown: It's possible that there hasn't been an open conversation about the importance of privacy and knocking on doors in your household.
To address this issue, you may want to have a respectful and calm conversation with your father. Explain how you value your privacy and how knocking before entering your room would make you feel more comfortable and respected. Open communication is often the key to resolving conflicts and misunderstandings within a family.