Should I take a student loan now, if I intend to become a mathematician?
Before answering whether you should take the loan you need to ask yourself some basic questions.


Would I go to the school if there was no loan available?
How would I pay for the school without the loan?
Are you good at budgeting your money?


If you would not go to the school without the loan, the answer to the big question depends on why the loan influence's your decision. The answer is almost always that debt is bad. If you would go to the school without the loan, have a means of paying for school and are good at budgeting, then take the loan and put it in a secure investment. At the end of the 3 years, cash out the investment, pay off the loan and pocket the interest. If you are bad at budgeting, you want to be careful about taking on debt and the answer is almost always debt is bad.