Hello. You did not inform the lesson to which this question refers, which makes it impossible for it to be answered accurately. However, I will try to help you in the best possible way.
Your allowance budget can be allocated in many places, the important thing is that it makes that money pay off and produces more money, multiplying the initial value. Many people tend to save that money in savings before receiving a good financial education. After learning better ways to invest, allowance money can be invested in stoks, at the central bank, in government bonds, among others.