great cost/benefit analysis on when to sign up for cryonics, plus associated topics, by @niplavyushtun
links to this article about the "hostile wife" phenomenon, which I was not previously aware of. one of the stated reasons for such hostility is that cryonics is a selfish act, as it redirects family resources for individual gain
https://www.biostasis.com/is-that-what-love-is-the-hostile-wife-phenomenon-in-cryonics/
hence, diverting family resources for individual cryopreservation can only be said to be ethical when adequate arrangements have already been made for the surviving spouse and children; how to determine if the arrangements are adequate, however, is a highly subjective matter
in this light, I find the "hostile wife" phenomenon, when motivated by such concerns, much more reasonable; parasitic cryonics is as damaging to a family as any other disproportionately costly pursuit.
clearly the answer is to become rich enough that its but a drop in the bucket