The reason I say land is the riskiest is draconian governments can simply seize it. And the dirtiest secret is they do not even have to. They can also tax all your value out of it.
Land also potentially ties you to a location which could be bad in some circumstances. I do own my home because I like it that way but I'm prepared to abandon it should the need arise.
How absolutely bonkers that statement would have sounded just a couple years ago. Luckily it still seems unlikely, but it would not be shocking. This is the scenario in which a little bucket of silver rounds may also come in handy.
Lord Jesus, I have become some sort of cyber-prepper. I have also stockpiled a little kCal dense food along with a great deal of ammo. May my children joke about crazy old dad some decades into the future as they sort through all my shit.