because the social ramifications are negligible.

You should reconsider this assumption. I would imagine that making suggestions about what to do with someone's soon-to-be-dead child's body would be looked upon coldly at best and with active hostility at worst. It's like if you suggested you knew a really good mortician; it's just not the sort of thing you're supposed to be saying.

There's also the fact that, as a society, we are very keen when watching the bereaved for signs they haven't accepted the death. To most people cryonics looks like a sort of pseudoscientific mummification and the idea that such a person could be revived as delusional. It is easy to imagine that if your friend shelled out hundreds of thousands on your say-so for such a project people might see you as preying on a mentally vulnerable person.

This is not to make a value judgement or a suggestion, just pointing out that the social consequences are quite possibly non-negligible.