>>715817184
If you have to get him a Switch game then you pretty much have three easy choices.
>LGPE if you want him to have gen 1 but even easier with Go capture mechanics and good graphics.
>BDSP if you want the old formula but ugly.
BDSP is constantly on sale as well, it's super easy to find $30 copies all the time.
>SWSH if you want him to have a large first game and since he has no frame of reference he'll have no expectations for it so he'll have a fresher approach to it than any of us did and see more good in it than we did.
PLA isn't a good choice because of the format change, I don't think that's good for a first game.
SV isn't a good choice because of the open world change and generally how much you have to keep in mind coming at it as a kid with no experience in games.