Mythical-Moonlight
I just ran, I ran all Night and Day ~
Except for the fact that the Majority of the Top 10 Pokémon of all time are not even from Kanto?I don't think the writers have "chosen" to restrict Satoshi to anything, he just happens to have more Kanto Mons cause they're generally the most popular ones. As we see with Riolu if a newer gen Mon's popularity exceeds Kanto's they'll shill it just the same or more, but that isn't too common so even if Lucario and let's say, Greninja ended up being the most shilled Mons of the series Kanto still wins in terms of quantity.
1. Greninja
2. Lucario
3. Mimikyu
4. Charizard
5.Umbreon
6. Sylveon
7.Garchomp
8.Rayquaza
9. Gardevoir
10. Gengar
Literally only two of those are Kanto mons