Some Baptist churches do require it for those having been baptized as a baby, if that person wants to become a member of that church. Some do not - They have more of an "open" membership policy.
Same with communion - Some Baptist churches do insist/require that only those having experienced 'Believer's Baptism' can participate.
Others practice a more "open'' Communion.
Same with communion - Some Baptist churches do insist/require that only those having experienced 'Believer's Baptism' can participate.
Others practice a more "open'' Communion.