Is it permissible or forbidden for a daughter to wear the hijab at home in front of her father and brother, justifying it with fear of her father?

The father and brother are mahrams to a woman, and it is permissible for her to uncover what typically appears of her extremities in front of them. She is not commanded to veil herself from them, unless she perceives suspicion from either of them, in which case she should treat him as a non-mahram (definition). The mere fact that the father looks at and speaks with women does not justify veiling from him; rather, it is suspicion in his gazes that would necessitate it. The suitor is a non-mahram, and she must deal with him on this basis. Thus, uncovering her hair in front of him is a reprehensible act that requires repentance. The father must be advised gently and kindly if what was mentioned about him is true.