Those who have lived longer do have one advantage of perspective: they have years of experience pursuing many "prime of life" impulses / goals / desires, and are therefore able to look back on and judge the (negative and positive) results of such pursuit. Of course, the experiences and feelings of one person or a handful of people cannot generalize to everyone, but I definitely think there is some value in considering the assessments of those who have "been there, done that."

Agreed. If anything, you won't have to worry about those death-bed regrets for long.

Also, this type of thing always seems skewed to people who worked a lot. What do the under-achievers regret?