Rebellion can mean a lot of different things. Mostly it amounts to opposition in a fairly superficial sense. Different clothes, different haircut, different music, maybe some intentional bad choices... But although these things are high-visibility, they're not that fundamental to identity and culture. It's rare for kids to completely cut ties with the fundamentals (i.e. all the things you mention) of their parents, particularly now when kids are still dependent on their parents for longer into adulthood.