In the European Union we changed currency, which is arguably a riskier change of measure, and much more abrupt a change. We did fine! Even my grandma got accus

In the European Union we changed currency, which is arguably a riskier change of measure, and much more abrupt a change. We did fine! Even my grandma got accustomed quickly. Of course one could argue that is precisely because of the importance of a currency that we adapted so quickly...