Ever since kindergarten, my 17 year old high school daughter cries at least once a week from her fear that her older than average parents will die too early — my husband and I were around 50 when she was born. She fears we'll — together or separately — get brain aneurysms, heart attacks, COVID, or fatal accidents. Husband and I bought life insurance, but this doesn't stop her from crying.
We don't do anything, or have medical conditions, that increase our risk of dying. But we travel for work — one of us is usually away from home. A family friend died of COVID that exacerbated my daughter's fears. We're all double vaccinated, but vaccines don't make you immune.
Three different adolescent psychiatrists assessed her, but they all evaluated her as normal. We were never in the same room as her and the pediatric psychiatrist, because we wanted her to speak freely. They didn't prescribe or diagnose anything. They found her more pessimistic than average, but pessimism isn't a psychiatric condition they said. Overall they found her analytical, rational, reasonable.