Do not forget that in the NT Book of Acts, WHOLE households were baptized and that DOES includes infants with the parents. So this should not be an issue.
No infants are mentioned in those passages. That is speculation.
Get some historical perspective, infants would not have been included unless specifically written.
Historical definitions of “household” is not the modern definition.
I believe you are correct. From what I was taught, the greek word for household would have included infants..
Do not forget...in the Book of Acts, they knew what was needed to be saved so there was no infant baptism. 2,000 years later and most don't have a clue because of all the man made teachings, different flavors for all. Didn't John the Baptist say 'repent'? Did you ever see an infant able to repent?
Here's what they knew in ACTS. "Repent, then, and turn to God, so that your sins may be wiped out, that times of refreshing may come from the Lord, “And He shall send to you The One who was prepared for you, Yeshua The Messiah.”Acts 3:19,20."