Eli5 why aren’t ballistic masks more common in warfare?

Question

You very rarely see depictions of soldiers wearing bullet resistant face masks. I understand that these only protect from small caliber weapons but wouldn’t you take all the protection you could get?

In: 154

Answer 1

The negatives outweigh the positives. They’re really heavy, make it harder to aim, vision is often hindered a bit. So mostly protecting from only small calibers is not useful enough for the negatives.