While both came on the scene on the same plane, i.e., innocent, Adam, in his innocent state, had no scriptures to teach him. What he did have was complete access to the "glory of God". Jesus, on the otherhand, had nothing but the scriptures to point Him in the direction of God: "Therefore the Lord [the Word of God] himself shall give you a sign; Behold, a virgin shall conceive, and bear a son, and shall call his name Immanuel. Butter and honey shall he eat, that he may know to refuse the evil, and choose the good. For before the child shall know to refuse the evil, and choose the good, . . . . ." Isaiah 7:14-16 (KJV)
Can you see how Adam and Jesus while both having an intimate relationship with God, only one had His indwelling Life which, had He not, the outcome might have been "everlastingly" different. Again: Heb 6:4-6 gives us a hint as to how bad it would have been.