Most Helpful Girl
Some naturally have sparse or light eyebrows.
Some are just following the trend, even when it isn't really for their natural eyebrow shape.
During the 90's till 00's, thin brows were what was in:
So of course many people followed that, but now their eyebrows might have stopped growing after plucking them so much, so how else could they go from those eyebrows to these eyebrows, if not by drawing them in?