In the current economic climate, it is important to
a) Reduce the levels of expenditure
b) Increase the levels of revenue
Reducing the levels of unemployment, helps to both reduce the level of expenditure (through fewer benefits) and increase revenue (through taxation). However, hiding the true figures of unemployment does not help the situation. It breeds mistrust in the population when they're told that the levels of unemployment are dropping when they can see people around them are losing their jobs faster than new jobs are appearing. People who are on training scheme's are still not employed. Although it may make them more employable in the future, they are still not in a job and therefore should not be discounted from the unemployment figures.
Students at University should not be instantly discounted from the unemployment figures because otherwise it can be used by the government to hide the true scale of the unemployment crisis. Sending students to University does not guarantee a better class of job, just a better excuse for gaining debt. Official figures show that 10% of graduates are still unemployed 6 months after graduation. However, it does not state that the 90% who are employed received jobs in their respective fields. Someone holding a Masters degree in Engineering could be considered employed, and within the 90% even if they were washing pots in a restaurant or working behind a bar. These will not yield the salaries necessary to climb out of the mountains of debt that today's students are faced with.