>>35950165I can not speak for the games, but in the anime that creates a good synergy between the girls, before the poke-girl in turn had to carry all the female roles, example Misty.
She was a tomboy girl by concept, but she had to adjust to very feminine or maternal roles according to the script, completely contradicting her established personality.
Having a larger group of girls you can explore with different personalities and without feeling forced or out of character.
In this case Lana represents a girl with more masculine tendencies in contrast to the effeminate Lillie, leaving Mallow in an intermediate point, it is worth noting that the directors have also played with the idea of representing the different social classes using the girls: Daughter of a prestigious CEO, daughter of a chef, and daughter of a fisherman.
Ok, rate my autism / vp /