>>46578425While other type trios like Dark-Psychic-Fighting exist and it would be a nice change, none of them are as self-explanatory for new players as the Fire-Water-Grass trio. It inherently makes sense in the mind of anyone who knows how those 3 things interact in real life, while something like Dark beating out Psychic would take more time and justification. With the series geared towards children, they will always go with the easiest trio to understand. Also, tradition. Maybe after Legends: Arceus, we'll get more games that shake up the formula and an attempt to use a new type trio for the starters, but I don't see the current trio being abandoned anytime soon.