You pay tens of thousands to be cryonized & later revived.
Someone has to be the very first attempted revival.
Then there's revival #2, 3, 4, 5, etc.
Can we expect all revivals to be successful from the get-go???
What if no one leaves instructions that they are willing to be first?
What if everyone leaves instructions that they do NOT want to
be revived until successful revivals are routine?