Longer lashes look more youthful and healthy. So do bigger eyes and framing your eyes can make them look bigger, that’s why people use dark eyeliner and mascara on light skin tones and light eye makeup on darker skin tones mostly.
This is of course not “organically” in their interest. It comes from our society valuing women almost exclusively for how youthful and pretty they look.
Longer lashes look more youthful and healthy. So do bigger eyes and framing your eyes can make them look bigger, that’s why people use dark eyeliner and mascara on light skin tones and light eye makeup on darker skin tones mostly.
This is of course not “organically” in their interest. It comes from our society valuing women almost exclusively for how youthful and pretty they look.