So many misleading advice and idea hereThe blind does not lead the blind, but a one eyed man is a king in the land of the blinds. Then, here is not the city of blind, so it's important this kind of posts be opposed with strong words such that ignorant newbies will not copy the advices.
The cost of maintaining wallet
This should be "The cost of buying a hardware wallet.
Those who are running long term investment, always have to undergo the active maintenance of seed phase, password,
This is not correct. You don not need to visit where you stored your seed phrase to carry out any maintenance and there is nothing like password maintenance. You change password instead.
Once you own bitcoin wallet or other crypto currency, thinking of how long you can maintain your wallet follows this steps,
First send your seed phase or private keys to your emails,
Recommending what is being preached against as a standard is a sin. Doing this gives your seed phrase multiple points of failure.
also use them to compose a little song only can listen anytime,
Are you kidding? A little song indeed. After composing the song you send it to your local radio station and make them play it every 15:00 hr
write it down in your diaries,
Nothing good is coming out from you, no matter how hard you tried. Don't write it in your diary where you write other events. Your seed phrase needs to be separate.
and makes sure have a google doc to save your wallet keys and other information.
Additional layer of blunder and points of failure. Avoid the cloud.