If they grew up in an extremely poor family, they could possibly see no way out of it, and be content in living the way they are. Despite having the possibility to progress forward.
No i do not because lungs allow u to breath and the heart pumps blood
It is true that they had the different types of rule as the Italian city-states have always been very self-suficient in a way (mostly politically not so much economically). This lead to a system or method called autonamy where each city-state more or less had the right for self-government. This also depended on the area of life we're referring to.
Is this a multiple-choice question?
Any answer pointing towards an authoritarian system of government, i.e. socialism, communism, fascism, corporatism, anything of the like.