Do characters ever get smarter and less naive?

I’ve been watching the series with my girlfriend for a while now, we are on the second chapter of season 4.

Honestly I just can’t believe how dumb Claire and Jamie are, they are just so naive, like they reset every season and face every problem like they’ve never had any problem before.

Claire always pushing for her feelings towards any situation that’s not accepted on her time (like slaves in this season) and Jaimie accepting it like: Ok Claire, I have no opinion on this, do what you want.

And then there’s Jaimie, a guy that literally fought, kill, did war, and then run away from law for literally 20 something years, but, he never carries a weapon, not even a knife it seems, and he’s so soft, suffering so much for every random person. But honestly releasing Bonnet made me make this post, it was so dumb to release a criminal like it’s nothing, but dumber was sleeping on that river with a freaking treasure without any form of guard at night.

Do these guys ever learn something and then act accordingly? Ever stop making conflict just because Claire can’t live with the situations she knew she’d have to live with when traveling back in time? Or just because they let to live people that they totally and obviously shouldn’t let live?

Sorry for the rant, but watching this series is becoming harder and harder for me :(