Guarding your seed phrase like you guard your bank pin is very important, and just like you did mentioned, many will be looking for the best storage practices to have their assets stored but will not pay as much attention to the basic principles of securing their wallets, it doesn't just end at getting the best cold wallet or the most secured online wallet, if your seed phrase is known to a third party, the chances that your assets are very safe and secured is almost not there because when once these persons can gain access to the wallet, they are very likely to be able to do whatever they wish with your wallet and move your assets to anywhere they wish to move it to, that way you can loose your asset even while using the best storage device.
I don’t see a world where we can equate a seed phrase with our bank passwords. It’s a password, in fact, even with knowledge of a bank password, you still could be required to produce a token to authenticate certain amounts to be transacted and their are amounts that the bank would limit you from transacting and would require your physical presence at the banking facility.
Such isn’t the case with wallet seed phrase, it’s an all in one authenticator not to mention, it gives you a clear pass to import a wallet unto another device, something you can’t do with just a bank pin or password. You get the leverage to transact as you please with knowledge of a seed phrase and with that level of leverage the seed phrase offers, you ought to device serious means to protect it and ensure it stays private, no one needs to know you even have such a key in your possession.