(1) The child benefit for the child is to be used to meet its cash requirements as follows:
1. half of the child benefit if one parent performs their obligation to maintain by caring for the child (section 1606 (3) sentence 2);
2. in all other cases, the complete child benefit.
To this extent, it reduces the cash requirements of the child.
(2) If the child benefit is increased to take account of a child that is not a child of both spouses, it is, in the amount of the increase, not to be taken into account as reducing the requirements.