If you have young children, a life insurance policy can help them financially when you aren't there to support them. A policy can help your spouse or partner cover living expenses if you aren't there to contribute. A life insurance policy can cover funeral expenses, end of life medical expenses, and so much more.
And the sooner you buy a policy, the sooner you are covered in case of a tragedy.
But the real question isn't so much about the best age to get a life insurance policy as it is about what kind of life insurance policy to get. Different policies have different benefits that may be a better match for you at certain points in your life.
Two common types of life insurance are term life and whole life.