If it's about dead people and true long-term, I still don't see the big technical issue, but why not give people 30 years or similar to prevent deletion? People

If it's about dead people and true long-term, I still don't see the big technical issue, but why not give people 30 years or similar to prevent deletion? People backpacking in the Andes, in jail, in a coma or whatever would be able to respond.