We believe that baptism is the action a person takes after becoming a Christ Follower. We see this many times in scripture as people believed in Jesus Christ and were subsequently baptized.
Acts 8:12 — But when they believed Philip as he preached the good news of the kingdom of God and the name of Jesus Christ, they were baptized, both men and women.
Acts 8:13 — Simon himself believed and was baptized. And he followed Philip everywhere, astonished by the great signs and miracles he saw.
Acts 18:8 — Crispus, the synagogue ruler, and his entire household believed in the Lord; and many of the Corinthians who heard him believed and were baptized.
Acts 19:4-5 — Paul said, “John’s baptism was a baptism of repentance. He told the people to believe in the one coming after him, that is, in Jesus.” On hearing this, they were baptized into the name of the Lord Jesus.
We see baptism as something done after making a clear decision to follow Jesus. We absolutely believe that a teenager can make this decision. Statistics say that most Christ followers made a decision to follow Jesus between the ages of 4-14 (84 %).