The idea that a motorcycle helmet limits a wearer's views to each side:

Question

An approved motorcycle helmet will allow the wearer to see as far to the sides as is necessary for safe riding.

Accepted Answer

Is inaccurate. Views are not limited.

Answer

Is accurate. Views are limited and can cause a hazard.

Answer

Is accurate, but only in that views are limited on sunny days.

Answer

Is accurate. Views are limited horizontally.