...Warriors. Physical combat. Of course you need Stamina.
No, not necessarily. Now if you are wearing heavy armor, I would say yes. But wearing light armor is a different situation. My Orc has 200 stamina and used heavy armor and a 2hander, and was mostly always empty. However my dual wielding light to no armor wearing Nord hardly ever goes under half and runs far faster and longer than the orc. This is with just the base 100 stamina.
It really comes down to armor I think, heavy armor really seems to take a a lot more to do anything in.
Stamina also gives you the abillity to carry more weight
This.
Do bears Sh*t in the woods?
Boy, you sure added to the topic at hand.