Praise be to Allah.
There is nothing wrong, in sha Allah, with the family celebrating the first time a boy or girl fasts, so long as it is limited to this occasion only, and will not become something that is repeated. There is nothing wrong with expressing happiness when the child reaches the age to observe this act of worship, or to encourage him and help him understand that this is an important event in his life. It is also a blessing for which thanks should be given to Allah. Some of the scholars regard it as mustahabb to make food for every happy occasion, and they specifically mentioned making food when a child completes the Qur’an.
See the answer to question no. 89705
If the reason for meeting to have iftaar is to spread love and harmony among those who gather, especially if they are relatives or if they are in a foreign land, and to encourage them to uphold ties with one another and show compassion towards one another, and to strengthen the bonds between Muslim families and their children, or that is done to help feed people and give iftaar to those who are fasting, and other valid purposes, then there is nothing wrong with it. In fact it is something praiseworthy that should be encouraged according to the purpose for which it is done, so long as it is not regarded as a Sunnah and is not taken by the participants as a regular “eid” other than the Eids prescribed in Islam, such that they gather on a particular day or in a particular manner, thinking that doing so has a particular virtue in Islamic terms.
Shaykh Ibn ‘Uthaymeen (may Allah have mercy on him) was asked:
I announce in one of the mosques that there will be an iftaar for everyone who wants to fast every Thursday. What is the ruling on that?
He replied: There is nothing wrong with making this announcement, because it is an announcement that is calling to good and the aim of it is not to buy or sell. What is haraam is to make announcements having to do with buying and selling, or renting and hiring, which are purposes for which the mosques were not built. As for calling people to good, feeding people and giving charity, there is nothing wrong with that.
With regard to its nature, and whether it is a gathering to perform a kind of worship, in fact they did not announce a communal fast; rather they announced iftaar only, so there is nothing wrong with that. And Allah knows best. End quote.
The night of the twenty seventh of Ramadan is one of the odd-numbered nights among the last ten, on which Laylat al-Qadr may occur, according to the saheeh report narrated from the Prophet (blessings and peace of Allah be upon him). But Laylat al-Qadr is not necessarily on this particular night according to the correct view; rather it may be on this night or on some other of the last ten nights, although this night is the most likely of those nights.
Based on that, it is not correct to be certain that it is always Laylat al-Qadr or to believe that. But if a person increases his prayers or strives harder in that, on the basis that it is the most likely of the last ten nights, there is nothing wrong with that, in sha Allah. As for singling it out for completing the Qur’an on that night, that is something that should not be done, lest it be believed for certain that it is Laylat al-Qadr. We know of no basis for doing that from the practice of the early generations.
With regard to distributing sweets on that night, we do not know of any basis for that. It seems that this is a kind of taking that night as an Eid. It is not prescribed to single out that night for that purpose; rather it is not prescribed to do that deliberately on that night or any of the other nights on the basis of its virtue. However, if the purpose of giving out these sweets is to be kind to small children and do something nice for them, it should not be done only on that night; rather if it is done every time there is a need for it, that is Islamically acceptable.
And Allah knows best.