She wouldn't do anything at all if Guts didn't push her. She'd still be in her treehut playing with fairies while Griffith burns her alive. She really has little to fear because she's powerful and she's with him.
I mean by that logic Farnese is a brave warrior. HA!
Caska didn't have to deal with this stuff. Her bravery was on a completely different level. She's not particularly big or strong, but she was actually a lot like Seprico. She was a strategist. She was smart enough to fight along with the real men and even become a real leader. She wasn't just a figurehead, they died for her out of respect.
I mean seriously, disrespecting pre-eclipse Caska is like disrespecting the entire Band of the Hawk, and Guts too. If you didn't see why she was an amazing warrior you probably were just clouded by your pedophelia.
I do like Shierke but only because she's cute and comes through. She still has no idea what pain or suffering even is. She has no idea what she's up against. She's important, and to Guts she's like a daughter, but she's not some one to admire.