Honestly, I think the answer is because keeping breasts pointed forward, against the forces of gravity requires extra support, and as a species, we haven’t been wearing bras long enough adapt to that.
That and the fact that average breast size has increased significantly in the last few decades
Honestly, I think the answer is because keeping breasts pointed forward, against the forces of gravity requires extra support, and as a species, we haven’t been wearing bras long enough adapt to that.
That and the fact that average breast size has increased significantly in the last few decades