Mormons consider baptism a gate - proxy baptism opens the gate, the post-mortal individual can choose to enter the path via the gate, or not. This necessitates

Mormons consider baptism a gate - proxy baptism opens the gate, the post-mortal individual can choose to enter the path via the gate, or not. This necessitates a lot of other background beliefs - immortal soul, individual will, and significant ordinances, to name a few.