For instance, in the book of Acts, we can read about men and women converting to Christianity but never about children or teenagers:
14 And all the more believers in the Lord, multitudes of men and women, were constantly added to their number,
12 But when they believed Philip preaching the good news about the kingdom of God and the name of Jesus Christ, they were being baptized, men and women alike.
4 And some of them were persuaded and joined Paul and Silas, along with a large number of the God-fearing Greeks and a number of the leading women.
All the figures of the New Testament seem to be adults only: Apollos, Aquila, Cornelius, Gamaliel, Joseph of Arimathea, Lazarus, Luke, Lydia, Mark, Martha, Mary Magdalene, Nicodemus, Philemon, Priscilla, Silas, Stephen, Timothy, Titus...
Why aren't teen and child conversions never mentioned? Did they ever occur?
Maybe minors where not candidates for discipleship.