Why can baptism be performed by a non-baptized person in an emergency?

In the Roman Catholic Church, baptism is considered a requirement for salvation and initiation into the church. Because of this necessity, the church permits anyone—including a non-baptized person—to perform the sacrament in an emergency situation.12

To be considered valid, the person performing the emergency baptism must have the use of reason and possess the intention of doing what the church does. The rite must be performed using pure natural water and the Trinitarian invocation: "I baptize you in the name of the Father, and of the Son, and of the Holy Spirit". This practice reflects the church's commitment to ensuring that the grace of the sacrament is available even when an ordained minister is not present.132