You do not need life insurance. Your dependents likely need you to have life insurance though! When you die there will be expenses and bills to pay after you are gone. If you have others depending on your income then they may not be able to pay those expenses. That should be your concern today.
If you do not have dependents (aka, others that need your money to survive) then you do not need life insurance. You may still choose to have life insurance to benefit other people or organizations after your death but that is your choice entirely. However, if you have people depending on your income I believe you need life insurance. That is, unless you are self insured and you know if you were to die tomorrow your dependants would be perfectly fine financially.