No you borrow against them at super low interest rates so you can have and spend the money anyways.

Then at your death there’s a thing called stepped up basis so your heirs inherit it at the market value not the original value.

So your family net worth can go up by hundreds of millions without any of that being taxed at all.

Yes it’s really as fucked up as it sounds. The very rich simply don’t pay taxes like you and me.