How do you know if university is right for you? At the secondary school I went there was an implicit sense that all students were expected to go to university. For example councillors would come into our English classes to give presentations on how to make smooth transition to a university. I guess I always had the assumption that a university degree is necessary to a) make a living and b) make a living doing something you enjoy. Now that I'm a little older and a little more experienced I know this is not always the case. There are plenty of people (especially in business) who did not complete a university program. How do you decide if university is right for you? Is the correct approach to decide on the job you want and then, if university is required, get the degree for it?
What do you want to do with your life? University is one way of getting to some of the answers. Trade school or apprenticing is another, if you think that's closer to what you want to spend your life doing. 

It's also legitimate to say you don't know yet -- in which case you need to decide whether starting classes would help you decide what interests you, or if doing something else for a year makes more sense.

I knew what I wanted to study (or thought I did; turns out I was close but not on the mark), but even so I decided to take a year off before college; I needed a bit of maturation time, and to switch from being the youngest in the class to being one of the older kids, for my own comfort. Spent the year doing volunteer work in a hospital (electronic repair, "biomedical engineering"), which was certainly educational in the general sense, helped build my self confidence, and may actually have helped my college application stand out from others.

"... There are nine and sixty ways / of constructing tribal lays, / And every single one of them is right!" -- Kipling