The Minimum Sum scheme is meant to help CPF members prepare for retirement where they can potentially have lifelong income for the rest of their lives.
Surprisingly, I noticed that many young people seemed to be unaware about the minimum sum scheme and how it applies to them. These people often have the misconception that retirement is something that they should worry about later on in their working lives and thus cannot be bothered about such schemes that will only affect them later on in life.
Please refer to the following link for more details on the CPF Minimum Sum