How can a woman make her female relatives love the Islamic dress and adhere to it, despite their non-adherence to it and their refusal to wear the niqab?

The reward is commensurate with the hardship; the more alienated the religion becomes, the greater the reward for those who adhere to it. The Mothers of the Believers and the female Companions should be taken as role models in adhering to the hijab and God's law. Moreover, young age does not affect obedience to God, as a girl becomes accountable upon reaching puberty, and her pursuit of virtue is like that of a youth who grew up worshipping his Lord. It is advised to seek righteous companionship, pursue knowledge, ponder the Quran, and frequently engage in supplication (dua) and remembrance (dhikr), and not to pay attention to those who deter one from obeying God. To endear the hijab to female relatives, one must remain steadfast in it, exhibit good character, and invite them with wisdom and good counsel, while clarifying the proofs of its obligation and the punishment for immodest display (tabarruj).