What is your advice to the father who rejects his daughter’s hijab on the pretext of delaying her marriage, or depriving her of enjoying her youth, or his desire to show her femininity?

This man is mistaken and abusive by preventing his daughter from wearing the hijab; for hijab is a religious obligation, and he is responsible before Allah for teaching her, disciplining her, and raising her upon the matters of her religion. He will be held accountable for this on the Day of Judgment. A girl's enjoyment of her youth and her feeling of femininity lies in her adherence to modesty, which grants her shyness, and this is truly the essence of a woman's femininity and the symbol of her beauty. Hijab is not an impediment to marriage, and displaying oneself is not a cause for it; marriage is a provision (rizq).