Always thought of it as a JRPG, myself. You walk around the open world, exploring and doing whatever you want. Instead of upgrading your gear, you find and upgrade your pokemon. When you find an enemy in the open world, you go to a turn based combat system very much alike that of FF, or many other JRPGs.
It might nit be completely obvious, but pokemon is definitely a JRPG, and so, by extension, an RPG.
It might nit be completely obvious, but pokemon is definitely a JRPG, and so, by extension, an RPG.