Why do Christians practice believer's baptism instead of infant baptism?

Believer's baptism is practiced by Reformed Christians to underscore the importance of personal faith in the life of a disciple. Unlike infant baptism, which is rooted in the assumption that being born to Christian parents grants automatic inclusion in the covenant community, believer's baptism aligns with the New Testament pattern where individuals publicly declare their faith after coming to an understanding and acceptance of the gospel. This emphasis confirms the belief that being a part of God's family is intrinsically linked to a personal relationship with Jesus. Celebrating believer's baptism allows the church to affirm the reality of one's faith journey and obedience to Christ's command, distinguishing it as an intentional act directly reflecting personal belief.