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/
people have a duty to their family, especially to one they've started, ie spouse and offspring. the parents, men especially, are expected to provide materially, and set up the next generation for success. diverting resources for individual gain can interfere with this duty
if one was to deprive their children of their inheritance for the sake of cryonics, that would indeed be unethical IMO; it violates the spirit of the family arrangement, wherein one expands their notion of the self to encompass the family unit.