Sheikh `Abdul-Majeed Subh, a prominent Azharite scholar, states: “As a Muslim parent, you should try to make use of good time to talk with your child kindly on Allah’s knowledge with the Unseen and His knowledge with all what man does or even thinks within himself. Try to let him/her know that Almighty Allah will hold man for account regarding all what he does. Almighty Allah says, “Say, (O Muhammad): Whether ye hide that which is in your breasts or reveal it, Allah knoweth it. He knoweth that which is in the heavens and that which is in the earth, and Allah is Able to do all things.” (Aal `Imran 3: 29). You can also talk with him/her on the physical and psychological benefits of fasting reminding him/her of Almighty Allah’s saying, “… and that ye fast is better for you if ye did but know.” (Al-Baqarah 2: 184). You may also tell them that scientists among doctors and sociologists found out that the fasting of Muslims is one of the most important reasons of their physical and psychological well-being.
Moreover, you may remind your children that the most important Islamic occasions happened in Ramadan such as the great battle of Badr, the Conquest of Makkah, the opening of Andalusia, etc.
Finally, you may tell them that the fasting person succeeds in controlling his desires and thus his manhood and the strength of his faith become apparent. He could also face and overcome hardships of life. But the one who cheats himself and breaks his fasting either secretly or publicly will be weak and cannot overcome or face the hardships of life.
Reminding your children of what I stated above or some of it should be done in a wise and kind way without indulging much in constant advice. One more thing is that you should not forget to make du`aa’ for your children in sujud (prostration while offering Prayer) asking Allah to guide him for the right path.”