Baptism does not save anyone at anytime, place, any age. You and those who believe as you do are putting stipulations on the gift of grace/salvation given to all mankind by God Almighty through His Son Jesus Christ. It's free for the acceptance. Following Jesus is another whole story. You are placing baptism as part of the saving process and that simply is not so.
s...,
Per scripture....you are wrong;
Acts 2:38-40...
38 Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost.
39 For the promise is unto you, and to your children, and to all that are afar off, even as many as the Lord our God shall call.
40 And with many other words did he testify and exhort, saying, Save yourselves from this untoward generation.
John 3:5... Jesus answered, Verily, verily, I say unto thee, Except a man be born of water and of the Spirit, he cannot enter into the kingdom of God.
I Peter 3:21....The like figure whereunto even baptism doth also now save us (not the putting away of the filth of the flesh, but the answer of a good conscience toward God,) by the resurrection of Jesus Christ:
KJV...which Bible do you use?
There are many more references.