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You are a self centered shithead OP.
Start them off with a game of his era, if he becomes deeply interested in Pokémon, he'll google search it and learn about the older games, and if he's that interested he'll play the older ones too.
I say 80% chance OP is full of shit.
If this story is true, OP is a shithead who cares more about making a kid enjoy pokemon the way he as an OVERAGE ADULT wants a kid to enjoy Pokemon, rather than let him have his own unique and special experience.