Isn't that what you ask yourself all the time? Here's a small answer to that..

You need Life Insurance because typically the need for income continues for those who are financially dependent on you, but there is no guarantee of your ability to earn consistently and for the rest of your life. Life insurance can help you safeguard the financial needs of your family.

This need has become even more important due to steady disintegration of the prevalent joint family system, and emergence of nuclear families. The need to protect your family's ever growing needs is why you need Life Insurance.