Vanguard has 20 million account holders, dozens of which will die or disappear off the face of the earth in the next hour, because that's what happens when you have lots of customers. If you act dead, they treat you as dead, and turn your stuff over to the government.
It'd be weird if they didn't.
Why wouldn't the government prevent them from sending the money since the government knows you aren't dead? Sounds so fishy and scammy to me. I did not know this problem existed. I guess I'll be logging into all my brokerage/retirement accounts regularly. I just hope when I get older I dont' get dimentia.. I sure couldn't count on teh state/federal government to be fair, obviously.
The government doesn't know who is alive and dead at any given point. It may have solid guesses for its citizens who are good at filing paperwork, but that leaves out millions of deadbeats, people who left the country, people who disappeared with no explanations, people who operated with a manufactured identity in the first place, etc, etc.
Financial institutions are de facto a branch of the government. Asking them to make sure customers are still alive IS one way they can make the educated guesses in the first place!