I think it depends on a lot of things.
Skin shade for one. Really fair skinned girls shouldn't wear completely nude lip gloss, but it shouldn't be a cherry red either. They should wear a peach shade. Darker skin toned girls should wear a bronze nude shade or a dark red.
It also does depend on the season. During the winter, girls should wear red. It would go well with the holiday cheer and the natural flush you get from the cold. In the summer, it's more for the natural look. Naturally sun streaked hair, natural bronze tan, and naturally nude lips. Not clear exactly. More of a peach-ish for fair skin tonesor copperish tone for darker skin tones.