CCC 1306 Every baptized person not yet confirmed can and should receive the sacrament of Confirmation.¹ Since Baptism, Confirmation, and Eucharist form a unity, it follows that “the faithful are obliged to receive this sacrament at the appropriate time,”² for without Confirmation and Eucharist, Baptism is certainly valid and efficacious, but Christian initiation remains incomplete.

1 Cf. CIC, can. 889 § 1.
2 CIC, can. 890.