You can't pass down your imaan, Like the way you pass down your old clothes. People have different levels of imaan, They need to practice religion on their own.
You can't pass down the deeds you have done, To compensate the sins they have committed. People need to learn from their mistakes and become their own person.
You can't pass down all the knowledge you have studied, And expect them to learn and practice in an instant. People need to be willing to open and listen and accept changes and different opinions.
You can however pray that they open their hearts and become a better person. Always remember to raise your hands in supplication, To the One who will listen, Of your doubts and worries, your plans and missions, your hopes and dreams, even your biggest accomplishments.
Because we may not have absolute power to make every good thing to magically happen, The power of du'a is all we have, But it is a mu'mins greatest weapon.