My idea would be to create a bank to safely store people's bitcoin and other crypto for people who just want to hold for a lot of time.
They would register with the passport or ID, it would cost 100 GBP + 1% to deposit and verify people's identities.
Then, to withdraw, it would take 3 months, they would have to show the passport and have a meeting via zoom once a month during 3 months stating they would want to withdraw, it would cost 300 USD plus 1% of the value.
It would compensate for people who want to hold for a lot of time without having security concerns.
How will you think of creating bank in a decentralized system where you have control over your asset (Bitcoin). Security of your wallet or Bitcoin is up to you, besides there is accumulation addresses where one can keep his Bitcoin over a long period of time.
Am not sure you understand what how bitcoin network works, what Decentralisation means. If you do this won't have worth to be posted.