excel, never said the Great Commission says anything about going to heaven. I brought up the point because you suggested that baptism was something other than a commandment spoken by Jesus Christ Himself.
God doesn't "want them to baptize", God commands them to baptize.
If you have a relationship with Jesus Christ, baptism is an act of obedience to His commandment, hence, if you do not obey a commandment of Jesus Christ, you cannot have a relationship with Him.
Yes, Sassy's post has scripture relating to children, but nothing conclusive.
I would suggest you read the story of the Covenant between God and Abraham.