Originally Posted by
DieselDan
Full face helmets inhibit peripheral vision and possibly hearing creating a more dangerous situation.
Full-face helmets designed for bicycle use do neither of these things.
Originally Posted by
DieselDan
Those helmets are best left for the BMX track for short controlled durations.
In cooler weather, they are the lid of choice for at least a dozen mountain bikers I know who also ride in urban environments.
Originally Posted by
DieselDan
Helmets protect the head, not the face, and are not designed to protect the face.
Bicycle full-face helmets are intended to do just that. Reference ASTM F1954-09.
Edit: to be clear, I'm not saying the full-face helmets are a solution to the limitations of a regular helmet. But they offer slightly greater protection, and if my kid wanted to wear one, there are no good reasons not to, other than comfort and heat issues.