Did the early church baptize infants — or did the Reformers who kept infant baptism just refuse to finish what they started?
Baptists and other credobaptists say baptism is for believers only, full stop. But paedobaptists — Presbyterians, Lutherans, Catholics, Anglicans — point out that infant baptism dominated Christianity for at least 1,500 years and argue it's the direct heir of circumcision in the covenant. So either the visible church was catastrophically wrong for most of its history, or the Anabaptists got something right that even Calvin and Luther couldn't stomach. Pick a side and defend it.