Bip39 C++ With very few exceptions, most modern wallets will create your seed phrase to suit your needs when you make your wallet. Presumably he suggests international mobility, due to the fact funds by definition need to be mobile. Capital that cannot be mobilised isn't capital, It is dead fat. https://mynichedirectory.com/listings13011076/bip39-standard-word-list-getting-my-seed-phrase-generator-to-work