why Sorcerer-specific dialogue is often so arrogant.
As you said:
Maybe sorcerers are just known for being very full of themselves
I mean that is just what [specific] dialogue choices are ...
You either are typical member of said group that choice refers to, or you need to pick something else.
Thats imho also rason we have so little [Human] specific dialogues ...
Since its not so easy to poit your finger on "typical Human behaviour"
