>>52873026It's aesthetics. Simple as that. You may as well be asking why anyone could possibly like circles when squares have more corners.
Instead, ask yourself why so many people orbit a series like Pokemon known for its cuteness and focus on these girls? Why do they take these small plain girls and turn them into "acceptable" busty grown women, when there are so many characters that are already matured to begin with, from franchises that don't heavily feature cute small-frame girls?