I've had Americans refuse to accept my $2 bills because they thought they were a joke instead of real currency

I've lived my entire life here and was well into my 40s the first time I ever saw one. When I did get hold of one, I did what many people do with it, which is to tuck it away in a side pocket of my wallet as a curiosity, rather than spend it.

Despite being similar value, for euros, the bills only start at 5 euro, while 1 and 2 euro are coins.

There is also a story that US cannot change the design of their $1 bill because of Big Vending.

Inflation might get things moving! :)

Same in Canada

You will almost never come across them unless someone goes out of their way to obtain them like Woz.

Outside of one rare occurrence where I received change in golden dollars and $2 bills, the only time I've seen $2 bills was when my father would buy them to tip with.