In my country, until the mid-2000s, the Postal institution enabled its savers to partially or completely freeze their balances for a specific period of time, provided that the freeze on the amount would not be lifted regardless of whatever reasons, even in if the person’s death. This product was not available in banks as I recall, but since the 2000s this product has been completely abandoned. When I think about the concept, I find it very useful and it can serve the financial institution and the saver as well, especially those who want to secure their savings so that they never think about using it. I think that there are many reasons that might encourage a person to do this according to his assessment of his needs in the medium and long term. The financial institution will also benefit from the liquidity that it will accumulate from the frozen balances, in addition to the possibility to impose fees for the service.
I know that it is possible to secure a deposit in the bank with any type of asset, but with the possibility of permanent disposal of it, meaning that its owner cannot ask the bank to lock it.
What I would like to ask is whether this product exists in the banking system of your country and why, in your opinion, are there central banks that do not allow it? Also, is this possible on online virtual banks?
My personal expectation is that this will be possible with some small local banks or state postal institutions. I also expect that this is not allowed in other laws because I have not heard of it much.
I am not certain if that's legally possible in ways you are desribing, unless you move your rights to a legal guardian, and even that could be in trouble if there's no legit reason not to give you your money.
Financial institutions have legal duty to give you access to your funds if you change your mind. Thing about consent is that you usually can withdraw that at any time. Even most products that you buy, customer has a right to change their mind for a time period and cancel the trade.
That said, i am not an expert in this and there might be workarounds that i don't know of, as there are all sorts of weird tax avoidance tricks that rich people use and i am sure that many of them rely on not moving money from their account.
And in EU we can set bank accounts for our kids that only they can only access when they are certain age, but that's because parents are their legal guardians and their word have more weight then their underaged kids.
I think there are some ways that you can lock your funds in usdt or eth or some other crypto to smart contract with a lock that opens only after certain time has passed, but i wouldn't recommend that ever. You never know what's going to happen and access to that money could save your life.