Zuko did this masterfully. All the cards were on the table for him to be a good guy. He's on good terms with Iroh and runs a tea shop with him, got to meet a beautiful girl and he seemed like he was living the good life. Then you'd think Zuko would turn good when he, katara and Aang have Azula cornered right kek
Its why his struggle to actually join the team was believable in the final season.