This is not a good advice but may sometimes be the only option left. Turn your seed phrase to a national anthem and enjoy it every morning while reading it. Do not trust your memory, but you can use it as the fourth backup that you should not rely on. People do have more than one seed phrase, this can make this impossible. Also not a recommended option.
Best protection is to use passphrase and distribute seed phrase backups in multiple locations, cities or even countries, and multisig setup is best for larger amount of coins.
While having the seed phrase in far different locations, passphrase would be recommended. But can it be in reality that people can have their seed phrase elsewhere far from them, like in another town, state or country? Even where I live, I see no convenient place to keep my seed phrase far from me, but it would be a good option to go for if it is safe.