you are reading doctrines into the Scriptures that are not there and contradict 2,000 years of Christian practice and belief. who knows better what the Apostles taught than those who heard them and saw what they did?
the Scriptures DO NOT speak of only adults being baptized. Jewish 1st century households would have been full of children.
1,500 years is a long time for no one to understand a core doctrine like baptism.
But the jailer was one household not Jewish households in general. Is there any Scripture that indicates infants were baptized?
“1,500 years is a long time for no one to understand a core doctrine like baptism”
It is, however Jesus’ illustration of the wheat and weeds foretold a longtime from beginning to end of it's fulfillment.
Now near the harvest time the difference between the wheat and the poisonous darnel becomes ever clearer.