(Srila Prabhupada and Sarasvati, London, 1969)
"Why we are welcoming these children? Because he is part and parcel of Kṛṣṇa. You are giving them chance to, as much as possible, to take part in the kīrtana, to taste the prasādam. That child who comes, imitates like this, oh, don't think that it is going in vain. Something done in Kṛṣṇa consciousness, knowing or not knowing, it will have its effect. These children who are bowing down, or trying to vibrate 'Kṛṣṇa', or clap, these things are being accumulated in bank account of Kṛṣṇa consciousness. Just like if the child touches this fire, it will act. It will not excuse the child, that, 'Oh, he is child, he does not know.' The fire will act. Similarly if Kṛṣṇa is the supreme spirit, a child who may take part in it, Kṛṣṇa will act. He may know it or do not know it. It doesn't matter. Because Kṛṣṇa is there. So it is so nice. Therefore every living being should be given chance."
(Srila Prabhupada Lecture, Los Angeles, February 18, 1969)