Anyone of any age can be baptized. Adults and older children who have not been previously baptized in another church can be baptized in the Lutheran church.
Do Lutherans baptize babies?
Lutherans practice infant baptism because they believe that God mandates it through the instruction of Jesus Christ, "Go and make disciples of all nations, baptising them in the name of the Father and of the Son and of the Holy Spirit (Matthew 28:19)", in which Jesus does not set any age limit: The command is general.
Do Lutherans get baptized or christened?
Holy Baptism
Lutherans baptize by sprinkling or pouring water on the head of the person (or infant) as the Trinitarian formula is spoken. Lutherans teach baptism to be necessary, but not absolutely necessary, for salvation.