OOC!
Cas would be too. Later in canon he's all "I wanna be a hunter" and he's kinda bad at all the things cops usually do (like interviewing suspects) and pretty good at research and stabbity stab things. I think Sam is right as in he's not really ready for the interview room and he's not that drawn to being a cop as such. His no.1 priority isn't helping strangers (this is before he got all 'I must atone!' Also weeee. Cas would be touched if he could see what Juliet was saying.
He's tryyying only he's kinda drawn to any bit of certainty going. Time management is hardddd. So is letting yourself have fun though he likes fun. Fun is good.
Hopes so too. This is his home now. He needs to see it that way!
Also Sam needs to be Sam. Not John! Sam why are you John? Cas is confused because Sam is clearly not just fighting but when they talk Sam is all "can't play, fight!" and Cas is all "but... aren't we meant to not be doing that everyone said we don't doo just that." Right? He's a little worried.