>>56501676early gens were designed with the expectation that the consumer base would be like 85% boys and 15% girls, later gens are marketed like 70/30 towards girls. Pokemon is one of those franchises like the Sims or Animal Crossing that women really dominate the audience for.
its especially important with modern Pokemon where the merchandise, which women again make the majority of the market for, make up such a huge revenue stream for the franchise. even girls who don't play the games still regularly buy stuffed animals and stickers and clothes with Pokemon on them.