Anyone who tells a person of any age that is sorely mistaken and doesn’t understand the Bible and the way of salvation. Men go to Hell because of their sin.
No human being will ever go to the Lake of Fire because of their sin. The penalty of sin has already be paid for all humanity. Humans are all born condemned to the Lake of Fire, but are saved immediately upon facing God and confessing their sins to Him through faith in what He provided at the Cross.
Too many people fail to continue reading after John 3:16
Joh 3:16-21
(16) For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.
(17) For God sent not his Son into the world to condemn the world; but that the world through him might be saved.
(18) He that believeth on him is not condemned: but he that believeth not is condemned already, because he hath not believed in the name of the only begotten Son of God.
(19) And this is the condemnation, that light is come into the world, and men loved darkness rather than light, because their deeds were evil.
(20) For every one that doeth evil hateth the light, neither cometh to the light, lest his deeds should be reproved.
(21) But he that doeth truth cometh to the light, that his deeds may be made manifest, that they are wrought in God.