^ How do we know he didn't start trying to emulate humans until that point? How do we know that when he was first activated, he wasn't far more primitive than we saw him in Encounter at Farpoint
. Maybe he was very robotic in nature and only spoke in a mechanical monotone. Maybe he originally sounded like the computer from TOS. Perhaps he was like Lal in The Offspring
. The point is that just because Data is childlike and naive in Encounter at Farpoint
doesn't mean he just started his journey of trying to become more human.