Maybe I lived in a poorer area, but growing up the only people that had calculator watches were the people who probably would have gotten beaten up and had them stolen. There was a long period of time that kids would say why do I have to memorize that, there is a calculator for it. By the time I was in college, it was already rapidly progressing to, why do I have to write down my steps, Wolfram Alpha can do that for me. For me, it quickly got to the point in math that a calculator wasn't really useful for tests to begin with.