1) This is actually not that clear cut. Both , and . are used and it depends on context which is used where (usually within the same business sector the guideli

1) This is actually not that clear cut. Both , and . are used and it depends on context which is used where (usually within the same business sector the guidelines are consistent). 2) Actually, I find it much more confusing that people are constantly using . and , for two completely different functions and not get confused about it. Mistaking a . for a , and vice-versa is quite easy. And that not even considers the likely confusion for people coming from countries with different rules. OTOH an ' is highly distinct visually from both a , and . so it's always clear that it can't be the decimal separator.