Also asked, can you see out of a stormtrooper helmet?
Your eye placement and head sizing is pretty acurate, you are basically breathing out of the upside-down V area of the stormtrooper mouth, and your face is pressed as far forward as possible so you can see as much as possible out of the small lenses of the helmet.
Secondly, why do stormtroopers have bad aims? The Force. 99% of the stormtroopers are NOT clones. Their bad aim is because on the Death Star they were ordered not to kill Luke and his friends. Now other times in the movies its probably the fighting conditions or their helmet reduces their accuracy due to the way its built.
Subsequently, one may also ask, how much does stormtrooper armor cost?
For my knowledge, most people will be right in the middle, around the $1200-$1500 range for a fully complete wearable Stormtrooper costume.
Are the first order stormtroopers clones?
No, the First Order does not use clones. The majority of the soldiers in the First Order Stormtrooper Corps were taken in as children, who were either parentless and abandoned, or were forcibly taken from their parents.