how ubiquitous is/was the desire for immortality?

historic china is known for emperors going to destructive measures for immortality, plus the bazillion ways sun wukong became immortal in the monkey king myth. in greece, there's the myth of the apples of hesperides that were said to grant immortality. plus the famous legend about alexander the great's quest for the fountain of youth. hell, in the modern day, apparently jeffrey epstein wanted it.

these are already a few examples just off the top of my head, but this is just spanning ancient greece and ancient china. the two cultures historically had trade with one another so i know it's possible one could've brought the idea to the other but also i don't know the timeline here lol

so how ubiquitous was that desire, especially among the living? is it seen in most cultures or is it the minority? was it restricted to just eurasia?