If you have people who rely on you for financial support of some kind you may need life insurance.
For instance, if you have a spouse, children, a home, or family members who you support financially, you may want to consider buying life insurance to provide them with continued support if you pass away.
In addition, you may want to buy life insurance to provide money for your final expenses so your family has the funds to pay for your burial and funeral at a time when they will be mourning your loss.
Here's an article that reviews the question "Why Do We Need Life Insurance?" to give you more information about your decision.