Other authors do not admit this distinction and hold that these non-Catholics are bound by the laws of the Church, since Canon 87 expressly states: By Baptism man is constituted a person in the Church of Christ with all the rights and duties of Christians.
Apostates and excommunicated persons are certainly bound by all ecclesiastical laws.
431. Oriental Catholics are not bound by pontifical laws (Canon 1) except in the following cases: (a) when the matter is dogmatic; (b) when the law implicitly extends to them, since it contains a declaration of natural or divine law; (c) when the law is explicitly extended to them. An example of (a) is Canon 218; of (b) Canon 228,2; of (c) Canons 622, Sec.4 and 1099, Sec.1, 3.
432. It is a general rule that all persons baptized, as just explained, are subject to ecclesiastical laws, if they are habitually able to reason; but that they are not subject to those laws, if they are not habitually able to reason.
First Rule.—Persons habitually able to reason are all those who in their normal state are able to understand the difference between right and wrong, that is, the majority of those who have completed seven years of age. Such persons are subject to ecclesiastical laws, even when actually they are unable to reason on account of temporary intoxication, delirium, derangement, unconsciousness, etc. Hence, one who would offer meat on Friday to a person momentarily unbalanced on the plea that his condition excused him from the law, would do wrong; for the state of passing irresponsibility excuses from formal sin (see 249), but not from the law.
Second Rule.—Persons habitually unable to reason are all those who have not yet learned the difference between right and wrong (e.g., infants and idiots), or who have permanently lost all knowledge of right and wrong (e.g., the hopelessly insane). These persons are not bound by ecclesiastical laws, at least not by those that are directive. Hence, in itself it is not wrong to give meat on days of abstinence to such persons, even when they are Catholics.
433. Exceptions to the first rule just given are as follows:
(a) According to Canon Law, the age of reason comes legally when one has completed seven years (Canon 12). If a boy or girl is able to reason before that age, he or she is not obliged by laws that are purely ecclesiastical, although it is advisable that parents accustom their children to the hearing of Mass, to abstinence, etc., as soon as this can be conveniently done. If a child has passed the seventh year and does not appear able to reason, he is not bound by ecclesiastical laws.
(b) According to Canon Law, the age of puberty is fixed for males at the completion of fourteen years of age, for females at the completion of twelve years of age (Canon 88, Sec.2). These who have not attained this age are excused from all penal laws, unless a law expressly states the contrary; for on account of the want of mature judgment they deserve leniency (Canon 2230).
(c) The age of majority in Canon (as in Civil) Law is reached when one has completed twenty-one years (Canon 88, Sec.1). Minors in the exercise of rights are subject to the power of parents or guardians, except where the contrary is declared by the law, as is the case for the reception of the Sacraments and the choice of a religious life (Canon 89). They are not obliged by the law of fast (Canon 1254, Sec.2).