[A]t the end of their life people might be increasingly motivated to make this end appear as positive as possible and to believe that they have lived an overall meaningful life. Against this background, we speculate that at the end of their lives, people regret less than before.

    Taken together, there is theoretical as well as empirical evidence that when the end of one’s life nears, people are motivated to believe that the things they could potentially regret are “too few to mention,” as Frank Sinatra put it in his song “My Way.”

https://absolutelymaybe.plos.org/2020/03/05/why-do-scientists-cite-the-top-5-regrets-of-the-dying/