Even if the Constitution had not contained an express power to legislate with respect to divorce and matrimonial causes, I would have thought that laws prescribing consequences for breaches of the personal obligations that are inherent in the marriage relationship were within the power of the Commonwealth Parliament. And, I am inclined to think, the Commonwealth power would extend to matters concerning the support and care of children, duties that are commonly considered to be inherent in the institution of matrimony.
So too, Owen J. [24] considered the power "wide enough to enable the relationship between those who marry and their children to be defined and regulated ". See also Fisher v. Fisher [25] . The scope of the relationship between the parties to the marriage and the children of the marriage is not limited by the obligation to provide nurture and protection and those rights consequent thereon: V. v. V. [26] ; Reg. v. Cook; Ex parte C. [27] . Rather, the obligation to provide nurture and protection is but an aspect of the relationship between the parties to a marriage and the children of that marriage. This relationship comprises a complex of rights, duties, obligations and responsibilities, which Murphy J. in Reg. v. Demack; Ex parte Plummer [28] enunciated as including "custody, access, guardianship, maintenance, advancement and security". The nature of the rights, duties, obligations and responsibilities entailed in this relationship, and the manner of their enforcement and discharge, will generally vary according to the age and abilities of the children of the marriage, such that it may fairly be said that it will only be in exceptional circumstances that the marital relationship will support a claim by or on behalf of an adult independent child of the marriage as against the parties to the marriage, or in respect of the property of the parties to the marriage. However, the fundamental and all-embracing obligation of the parties to a marriage to the children of the marriage is (e.g., as expressly provided in s. 60A(1) of the Act in relation to a guardian) to accept responsibility for the long-term welfare of such children. Normally that responsibility will be fully discharged in relation to each such child during the child's infancy or soon thereafter. However, the Act itself contemplates that such an obligation may endure beyond infancy; s. 76, e.g., makes provision for the maintenance of a child who has attained the age of eighteen years, but who requires continuing maintenance by reason of the circumstances therein set forth. Normally, too, the obligation to provide for the welfare of a child of a marriage will be discharged personally by the parties to the marriage, or the party to the marriage having guardianship of the child. This, however, is not always the case, and it may be accepted that in some family units, some of the obligations of the parties to a marriage in relation to the children of the marriage are, to some extent, discharged by others, including other (usually, older) children of the marriage. Without being exhaustive of the circumstances which will confer upon a claim by a child of the marriage the relevant nexus with the marital relationship, it seems to me that claims advanced by reference to an unmet obligation of parties to a marriage to provide for the long-term welfare of a claimant child of the marriage, or claims made by reference to the obligation to provide for the long-term welfare of other children of the marriage when that obligation has devolved upon the claimant child of the marriage, would constitute claims which can be said to arise out of, or have the relevant nexus with, the marital relationship.
1. (1962) 107 C.L.R. 529, at p. 574.
2. (1962) 107 C.L.R., at p. 580.
3. (1962) 107 C.L.R., at p. 602.
4. (1986) 161 C.L.R., at pp. 452, 455-456.
5. (1985) 156 C.L.R. 228.
6. (1985) 156 C.L.R. 249.
7. (1977) 137 C.L.R. 40, at p. 57.