In the Roman Catholic Faith, babies are baptized, but are not Confirmed in the Faith until they are about 12 or 13. It is beleived that, by that time, they are old enough to make a decision to be a true Soldier of Christ
Ditto the United Methodist Church: at ours, they go through confirmation class, usually in 8th grade, and are then full members of the church. My gripe has always been that the church leadership gives lip service to “full membership”, but won’t include confirmed youth in leadership or voting unless somebody (read “me”) makes an issue of it.
Colonel, USAFR
Once a Youth is Bar Mitzvah, they have full rights and responsibilities in the temple, including doing readings from the Torah and being part of a Minyan (ten adults need for a service!
Ditto the United Methodist Church: at ours, they go through confirmation class, usually in 8th grade, and are then full members of the church.
Interestingly, ALL examples of baptism in the Bible occur with adults who make a conscious decision to make a life-changing decision.