I think the title “Breaking Bad” is such because this is a show about a high schooler who ‘broke bad’ by not obeying his parents.

Flynn/Junior always messes stuff up when he breaks bad and fails to obey his parents or gets all snoopy. Even when Hank and Marie are talking about how to help him and he walks in, he just gets all mad and breaks bad. I’m pretty sure that then end of elcamino (haven’t seen) will have him getting into a cab all like Verbal Kent style. His being a bad kid basically causes a bunch of bad things to happen and it’s his fault.