Are children prevented from cutting their hair and nails before the last ten days of Dhul-Hijjah for the sake of their upbringing and accustoming them to acts of worship?

The questioner : Shaykh, regarding this topic, as well as the matter of the home and teaching the children, and so on; last year and the year before, you and I discussed the issue of whoever has a sacrificial animal not taking anything from his hair or nails at the beginning of the ten days of Dhul-Hijjah. So I asked you about the rest of the household, the wife and the children, whether they should refrain with the man or not? You told me: There is no text that includes the household, the wife and the children, except that from the perspective of teaching the children and the wife in this area, in solidarity, they perform this act so that the children grow up with this good habit and learn it; because the girl will become a mother in the future, and the boy will become a father in the future; so in solidarity, the children and the wife learn that we teach them to refrain from the beginning of the ten days of Dhul-Hijjah so that this Islamic atmosphere applies to the Islamic environment in the home. So today I was surprised when Umm Abdullah said that the Shaykh says: only the man. I told her: The Shaykh says: also this and that, meaning; and because Umm Abdullah was refraining with me in this matter and all the children were accustomed to this until the beginning of the ten days of Dhul-Hijjah; she said: We do not want to do anything to our nails because of this and that. So Umm Abdullah told me today: The Shaykh says: no. I told her: Today we will inquire; so what is your opinion on the topic?

The Shaykh : The truth is that the issue has no text, as you quoted from me, and the thing that has no text is not imposed on people. So the principle is that it should be said that, of course, the one who wants to sacrifice, indeed, it is obligatory for him to do this thing. But on the other hand, it is not permissible for us to say: It is obligatory for the other members of the household to refrain from cutting hair and nails; this is not obligatory at all. But what you quoted from me can be said from the perspective of considering an educational benefit, without it being obligatory for the head of the household or the woman of the household; such that they are explained the ruling that it is not obligatory except for the one who sacrifices and for whoever shares with him in the maintenance and the price, as for the rest of the household, it is not obligatory for them because there is no text. But from the perspective of keeping pace and sharing in this matter, I see no obstacle in that without compulsion. And the question about this issue has been frequent until the last thing, 'Asim ibn Abi Malik, a few hours ago, asked me questions about the sacrifice, including this.
In summary: The household is not obligated to do this, but it is recommended for them to participate with the father in this. But the issue has precision from the jurisprudential perspective; because now my wife understands, and you know how women understand; meaning, they snatch the ball from the top of the ma'un; they take the summary that the household is like the head of the household. But there is a great difference, as you quoted accurately; there is a great difference between what you quote and what quotes the summary. Then when the summary is transferred from one person to another, and especially from one woman to another, the problem increases, meaning; so it is better to state explicitly that it is not obligatory except for whoever wishes, from the perspective of upbringing, the upbringing of the household only, yes, that is right.

The questioner : May Allah reward you with good.

The Shaykh : And beware of that.