^^^ As you've posted in 'News', AnjaliSingh04, Bobbisox1 seems have assumed that you're referring to a current affairs issue. (If that's the case, I'm equally baffled by your question).
However, if I assume that your question really belongs elsewhere on this site (such as 'Jobs and Education') then the answer is many school students either have unrealistic ideas of their potential job prospects (such as hoping to become a teacher when their chances of achieving a university degree are almost nil) or, more commonly, set their sights too low (such as seeking routine office or factory jobs when they've got the ability to go onto further study and then ultimately to far more interesting careers).
Further, some students only consider career options that are the 'norms' within their cultures or traditions. For example, many female students don't consider careers in engineering (because they regard them as men's jobs) and many male students might not consider working in hairdressing or catering (because they view them as women's jobs).
So the role of a careers counsellor is to ensure that students are neither setting their targets too high or too low and to ensure that they widen their horizons as far as possible when considering potential careers.