Rather amazing (or perhaps and unfortunately not so amazing) how so many trads including their priests, from the pulpit no less, refer to children as kids.
Here is an excellent article on the subject:
8/1999 ANGELUS Here's how a relatively small sampling of some updated get up to speed Sacred Scripture would read/sound.
Matthew 18:1-5
At that hour the disciples came to Jesus, saying: Who thinkest thou is the greater in the kingdom of heaven? And Jesus calling unto him a little
kid, set him in the midst of them, And said: Amen I say to you, unless you be converted, and become as little
kids, you shall not enter into the kingdom of heaven. Whosoever therefore shall humble himself as this little
kid, he is the greater in the kingdom of heaven. And he that shall receive one such little
kid in my name, receiveth me.
Isaias (Isaiah) 66:7
Before she was in labour, she brought forth; before her time came to be delivered, she brought forth a man kid.
Matthew 1:18
Now the generation of Christ was in this wise. When as his mother Mary was espoused to Joseph, before they came together, she was found with kid, of the Holy Ghost.
Matthew 1:23
Behold a virgin shall be with kid, and bring forth a son, and they shall call his name Emmanuel, which being interpreted is, God with us.
Matthew 2:8
And sending them into Bethlehem, said: Go and diligently inquire after the kid, and when you have found him, bring me word again, that I also may come to adore him.
Matthew 2:9
Who having heard the king, went their way; and behold the star which they had seen in the east, went before them, until it came and stood over where the kid was.
Matthew 2:11
And entering into the house, they found the kid with Mary his mother, and falling down they adored him; and opening their treasures, they offered him gifts; gold, frankincense, and myrrh.
Matthew 2:13
And after they were departed, behold an angel of the Lord appeared in sleep to Joseph, saying: Arise, and take the kid and his mother, and fly into Egypt: and be there until I shall tell thee. For it will come to pass that Herod will seek the child to destroy him.
Matthew 2:14
Who arose, and took the kid and his mother by night, and retired into Egypt: and he was there until the death of Herod:
Matthew 2:20
Saying: Arise, and take the kid and his mother, and go into the land of Israel. For they are dead that sought the life of the child.
Matthew 2:21
Who arose, and took the kid and his mother, and came into the land of Israel.
Luke 2:17
And seeing, they understood of the word that had been spoken to them concerning this child.
Luke 2:21
And after eight days were accomplished, that the child should be circuмcised, his name was called JESUS, which was called by the angel, before he was conceived in the womb.
Luke 2:27
And he came by the Spirit into the temple. And when his parents brought in the child Jesus, to do for him according to the custom of the law,
Matthew 5:9
Blessed are the peacemakers: for they shall be called kids of God.
Matthew 8:12
But the kids of the kingdom shall be cast out into the exterior darkness: there shall be weeping and gnashing of teeth.
Matthew 14:21
And the number of them that did eat, was five thousand men, besides women and kids.