Let’s delve into DMC 24, where a previous question was asked about lay preaching.
24. Since the eucharist is always the action of the entire ecclesial community, the participation of at least some adults is desirable. These should be present not as monitors but as participants, praying with the children and helping them to the extent necessary.
Again, school Masses seem the usual scenario for these prescriptions. Rarely have I seen a teacher or catechist not engaged in prayer, but adults with younger children are always ready to assist.
With the consent of the pastor or rector of the church, one of the adults may speak to the children after the gospel, especially if the priest finds it difficult to adapt himself to the mentality of children. In this matter the norms soon to be issued by the Congregation for the Clergy should be observed.
Those same norms would probably not be issued today, nor would CCC 766-767 be as liberally interpreted as in the past. Some would say, and I could not argue against it, that by not attending to the training of seminarians in preaching the children, the curia has abandoned its role somewhat in this regard.
Even in Masses with children attention is to be paid to the diversity of ministries so that the Mass may stand out clearly as the celebration of the community. [See Sacrosanctum Concilium 28.] For example, readers and cantors, whether children or adults, should be employed. In this way a variety of voices will keep the children from becoming bored.
A common sense point. Any comments?
Catholic Sensibility 
What do CCC 766-767 have to do with this? Was that a typo?
My bad. Canon law 766-767.
I am having trouble with something you list on your web site. In DMC 24 you state
Even in Masses with children attention is to be paid to the diversity of ministries so that the Mass may stand out clearly as the celebration of the community. [See Sacrosanctum Concilium 28.] For example, readers and cantors, whether children or adults, should be employed. In this way a variety of voices will keep the children from becoming bored.
I looked up SC and 28 says
28. In liturgical celebrations each person, minister or layman, who has an office to perform, should do all of, but only, those parts which pertain to his office by the nature of the rite and the principles of liturgy.
I then did a search for the word children, figuring maybe they list the 28 wrong and the only place I find children is in section 2 and it says
[5] under which the scattered children of God may be gathered together [6], until there is one sheepfold and one shepherd [7].
This seems to have nothing to do with the above statement.
can you help me with where you are siting this as I find it no where in SC. Thanks.
SC 28 and DMC 24 refer to the proper diversity of ministries. It’s not an exact quote, so the writers of DMC included “see” in their footnote.