That's the McHugh and Callan translation. Stubborn dismisses all other McHugh and Callan sources he disagrees with.
Catechism of the Council of Trent, McHugh and Callan, 1923
Baptism Of Infants Should Not Be Delayed
The faithful are earnestly to be exhorted to take care that their children be brought to the church, as soon as it can be done with safety, to receive solemn Baptism.
Since infant children have no other means of salvation except Baptism, we may easily understand how grievously those persons sin who permit them to remain without the grace of the Sacrament longer than necessity may require, particularly at an age so tender as to be exposed to numberless dangers of death.
Ordinarily They Are Not Baptised At Once
On adults, however, the Church has not been accustomed to confer the Sacrament of Baptism at once, but has ordained that it be deferred for a certain time.
The delay is not attended with the same danger as in the case of infants, which we have already mentioned; should any unforeseen accident make it impossible for adults to be washed in the salutary waters, their intention and determination to receive Baptism and their repentance for past sins, will avail them to grace and righteousness.
Nay, this delay seems to be attended with some advantages. And first, since the Church must take particular care that none approach this Sacrament through hypocrisy and dissimulation, the intentions of such as seek Baptism, are better examined and ascertained. Hence it is that we read in the decrees of ancient Councils that Jєωιѕн converts to the Catholic faith, before admission to Baptism, should spend some months in the ranks of the catechumens.
Furthermore, the candidate for Baptism is thus better instructed in the doctrine of the faith which he is to profess, and in the practices of the Christian life. Finally, when Baptism is administered to adults with solemn ceremonies on the appointed days of Easter and Pentecost only greater religious reverence is shown to the Sacrament.