Permanent life insurance

Looking for feedback on a viewpoint I'm having. Starting to believe my monthly premium in life insurance is unnecessary. I have viewed life insurance in the past as a solid protection for my family in the event I die. My children are in college now, my house is just about paid off, and I have no debt (beyond that mortgage). I have built up a retirement nest egg and feel this would provide enough should I die and no longer need to spend the large amount of premium spend every month. I'll be 52 this summer - just feeling like I'm over-insured. Thoughts???