Are you fucking insane? He is not going to be 6'4. He is not growing anymore.
This is it.
He will be as tall as Ronaldinho and CR
First of all, there's no need for the animosity in your first sentence.
As for him 'growing to 6 foot 4', I never said he was. Just saying he's 16 and probably still growing. I was talking from an extremist position.
How do you know he isn't gonna grow anymore? Tell me how you - a stranger to Lamine Yamal, no access to Barcelona or Spain, and presumably not an expert on growth - knows he has stopped growing. You'll probably be proved right but how are you so confident?
Seems baseless considering the boy is only 17 (almost).
Edit - you seem to be implying he will grow another inch or two, he's 5 foot 11 now isn't he (CR is 6 foot 1 I believe)? That's more likely. It's still tall for a wide attacker generally.