Thank you for your interest in baptism at the Kirk. We welcome your inquiry, and hope that when you meet with a pastor to discuss the service, you will understand the significance of the sacrament of baptism, and feel free to discuss any matters in connection with the service.
The Presbyterian Church baptizes both children and adults as appropriate, although anyone who has been baptized in infancy or childhood may not be offered a subsequent adult baptism. Except in very special circumstances, baptisms are held as part of one of the services of worship at the church as required by the Presbyterian Church (USA)'s Book of Order (W-2.3011a).
There is no 'correct' age for baptism—much depends on the circumstances in each case. The baptism of a child or infant is intended to signify God's love of the child, and express the parents' undertaking that the child will have a Christian upbringing which will normally lead to membership of the church when the child reaches the age at which this is appropriate to his/her Christian development. The baptism of an adult is normally associated with commitment to the Christian faith and is usually part of the process of becoming a member of the church, and of taking one's place in the life of the church. Many adults will find the opportunity for baptism arising—if they were not baptized earlier—during church membership meetings as the person prepares to take the vows of church membership. It may also take place at other times as appropriate, but baptism should never be thought of as outside the context of membership of Christ's church.
For more information about baptism at the Kirk, please contact Jen Morris at firstname.lastname@example.org.