I was just suggesting to give them the password of the encrypted seed(or a share of your split seed) you want to bequeath to your wife, instead of a notary. Even if they open the envelope and guess it's a password of an encrypted seed, they won't be able to find it if you don't say to them where it is located.
And if you don't tell them what it is or where your encrypted seed is located, then how will they recover it after your death? Either you tell them your whole set up, in which case you are trusting them just like I trust my wife, or you don't tell them the set up, in which case you run the risk of them never being able to recover your coins.
If you don't have a family member you can trust, then there are trustless ways to set up inheritance, such as by using timelocked transactions. This is a better solution to giving out passwords in envelopes.
Why? What Google could do with a password of an offline encrypted seed ?
Leak it over the entire internet, as they've done with plenty of data in the past? Store it in plaintext, as they were caught doing with users' passwords for 14 years? Or maybe just shut down the service you are relying on, meaning your data is lost forever.
Besides that, if there is already a risk that your wife does that with your fiat money why do you want to add an extra risk with your cryptos?
Because she is not an idiot. If she is at risk of falling to such a low level scam, then so is everyone on this forum and nobody's bitcoin is safe. Not to mention that it would be
significantly more difficult and time consuming for her to collect all the necessary back ups to start emptying various bitcoin wallets than it would be to log in to a fiat account and empty it out.