When I entered the university, I looked at how my ability to successfully pass exams corresponded to the passing scores for the desired professions for study. Well, at the university, "banking" was very difficult to get into, as was IT technology. But I want to say that it is also necessary to look at whether the market of specialists is oversaturated, because if the job is highly paid but 20 people apply for one job, then it will be difficult to get such a job
It also apply to non saturated specialists.
Let's say currently there are 200 companies open job vacancy for accounting positions, only 100 people are qualified, the rest are still open. 3 companies open job vacancy for nuclear engineering positions, no one qualified.
There are 1,000 people have finished from accounting degree and there are 50 people finished from nuclear engineering degree.
The chance to get a seat for nuclear engineering degree is lower because the chance is only 6% (3/50), while accounting is 10% (100/1,000).