What is Ferris rebelling against?

Ferris is rebelling against the very institutions which govern and supposedly control his life for his own good, 
Ferris rebels against the institution of family which has definite expected behaviours and responsibilities that are in place by his parents to navigate his future prospects of 'success'. His role within the family is seemingly out of his control, he is seen as an angel by his parents and as an innocent reflection of the wholesome family values which his parents have nurtured within him. Ferris because of this becomes a master of his own destiny  within the family and manipulates his parents perspective of him rebelling against the fabric of the family unit. 
Ferris's sister Jeanie sees this and is resentful towards Ferris, not because he is manipulating their parents but because she is missing out on the opportunity to 'live a little'. The focus on looking after one's own interests and issues is central to the teen movie genre, and this goes against the typical archetypal hero tag which sees the hero show concern for others more so than for him/herself. The notion of a hero seems to be overturned from serving others but serving yourself. 
Ferris also rebels against the institution of Senior High school when at this stage of their lives students are meant to looking beneath the surface of themselves and find their place within society, at what college they want to go to and what occupation they want to do. Ferris goes against this notion of planning for the future by whimsically commenting towards the end of the movie about what he's going to do tomorrow. His attitude towards this is further highlighted when Sloane and Cameron have no idea what Ferris future holds.                                                                                                    
Ferris' lack of respect for authority within the movie goes hand in hand with outsmarting and outwitting the older generation who traditionally have the power of upholding the institutions which Ferris is under. 

 Ferris is rebelling against the very institutions which govern and supposedly control his life for his own good, 
Ferris rebels against the institution of family which has definite expected behaviours and responsibilities that are in place by his parents to navigate his future prospects of 'success'. His role within the family is seemingly out of his control, he is seen as an angel by his parents and as an innocent reflection of the wholesome family values which his parents have nurtured within him. Ferris because of this becomes a master of his own destiny  within the family and manipulates his parents perspective of him rebelling against the fabric of the family unit. Ferris's sister Jeanie sees this and is resentful towards Ferris, not because he is manipulating their parents but because she is missing out on the opportunity to 'live a little'. The focus on looking after one's own interests and issues is central to the teen movie genre, and this goes against the typical archetypal hero tag which sees the hero show concern for others more so than for him/herself. The notion of a hero seems to be overturned from serving others but serving yourself. 
Ferris also rebels against the institution of Senior High school when at this stage of their lives students are meant to looking beneath the surface of themselves and find their place within society, at what college they want to go to and what occupation they want to do. Ferris goes against this notion of planning for the future by whimsically commenting towards the end of the movie about what he's going to do tomorrow. His attitude towards this is further highlighted when Sloane and Cameron have no idea what Ferris' future holds.
Ferris' lack of respect for authority within the movie goes hand in hand with outsmarting and outwitting the older generation who traditionally have the power of upholding the institutions which Ferris is under.