Yes. But spread the risk around. Don’t get in a situation where the failure of any one entity would wipe you out.
I am wondering if a person bought the basket of 4 currencies and if the dollar blew up how the C$, A$, Norge Krone and Brazilian Real would hold up?
I know all the Germans wish they still had the DMark. They were proud of the DM.
The nice thing about Canada, Australia and Norway is they do not elect Muslims to run their countries.