If Baptism confers grace, it should not be denied to infants.
The issue is that Baptism is important for conversion, See the important story of Acts 10:48 when Peter insisted Cornelius and his entire house be Baptized.
Lets look a little broader shall we?
44 While Peter yet spake these words, the Holy Ghost fell on all them which heard the word.
45 And they of the circumcision which believed were astonished, as many as came with Peter, because that on the Gentiles also was poured out the gift of the Holy Ghost.
46 For they heard them speak with tongues, and magnify God. Then answered Peter,
47 Can any man forbid water, that these should not be baptized, which have received the Holy Ghost as well as we?
48 And he commanded them to be baptized in the name of the Lord. Then prayed they him to tarry certain days.
Note the Holy Spirit descended upon all of them and they demonstrated the gifts of the spirit. They are showing clearly as being saved before being baptized.
Mind you I am not dismissing the importance of baptism, just the position that without baptism there is no salvation.
:::See the important story of Acts 10:48 when Peter insisted Cornelius and his entire house be Baptized.:::
I presume your reference to Cornelius was to infer that surely there were children in the family who were also present. Since scripture says that they were baptized, it logically follows that infants were baptized. Some questions are raised.
Acts 19:33 Immediately therefore I sent to thee; and thou hast well done that thou art come. Now therefore are we all here present before God, to hear all things that are commanded thee of God.
Q: Did infants hear all things that are commanded thee of God?
44 While Peter yet spake these words, the Holy Ghost fell on all them which heard the word.
Q: Did the infants hear the word?
46 For they heard them speak with tongues, and magnify God. Then answered Peter,
Q: Did the infants speak in tongues?
Were the infants immersed?
Re: Peter’s sermon on Pentecost.
Did infants ask, “What must we do?”
Were infants baptized to receive forgiveness of sins as Peter said on Pentecost? If sin is the transgression of the law, what transgressions have infants done?
Paul, in Romans speaks about this: Romans 9:11
(For the children being not yet born, neither having done any good or evil, that the purpose of God according to election might stand, not of works, but of him that calleth;)
Paul says unborn children have not sinned; therefore, don’t need forgiveness of sins (sins that they don’t have.)
In one Catechism I read that, “If faith is a work of God, why can’t he work faith in a child?” QED: Infant baptism. Signed, Sealed and Delivered. One person responded, “Then why can’t God work faith in a dog, or a tree, or a stone.? Logically, it follows that we should baptize dogs, trees and stones.