Asklemmy

Not a topic I'm super familiar with, but I feel I've heard people often are either robbed or have their items confiscated by authorities. Same with unhoused people not wanting to have stuff that would make them a target.

If it was something you had a little bit of prep time for, ziplocking USD or EU and seeing it into a grubby jacket where the repairs would blend in and not garner attention would be the most portable and effective thing to do while minimizing theft potential, other than having all eggs in one basket unless you split it between different garments. Also make sure it is pretty weatherproof to prevent mold damage.

It also has the benefit of being immediately usable, should you need to pay for transport or food. If it was seen in a puffy coat, one could discreetly remove one pack of bills while leaving the rest secure. The immediacy that cash can be used may make up for having something potentially more valuable that you would have to barter or fence, as pretty much any human has a need for cash.

US: The way to effectively do thos is to open a series of accounts, in a tree structure, in countries that aren't CRS compliant. Disperse the money into the structure. This will buy time, mitigating losses in the event of an asset freeze, likely not being caught until FACTA reporting to the IRS. Get the money out ASAP. There's better methods if laws don't matter.

If you are serious, learn a trade. They will always be in demand.

Why not just use something like Wise to hold your cash?

Gold is still the preferred way of storing wealth in many parts of the world. You can just take gold bars with you which should have value anywhere.