John 3:16-18 NASB
16 “For God so loved the world, that He gave His only begotten Son, that whoever believes in Him shall not perish, but have eternal life. 17 For God did not send the Son into the world to judge the world, but that the world might be saved through Him. 18 He who believes in Him is not judged; he who does not believe has been judged already, because he has not believed in the name of the only begotten Son of God.
So all children believe in Jesus Christ? Even Buddhist and Shinto children (as someone asked earlier)?
Now technically, I asked "where does scripture state that children get a free pass to heaven?" If you object to the phrase "free pass to heaven", then it is duly noted. However no scripture has yet been provided to support this potential 'Sunday School fairy tale'. If I wanted doctrines based purely on traditions, I could be a Roman Catholic. Protestants are supposed to believe in Scripture as the normative standard.