I don't think I would say it is odd because it isn't a type of number that is directly supported by the hardware. That said it is available in the standard libr

I don't think I would say it is odd because it isn't a type of number that is directly supported by the hardware. That said it is available in the standard library of most popular languages, and probably just a package install away for any other languages. Also, a plain integer is usually sufficient for financial calculations (just count pennies, not dollars) so in some ways I think decimal types are overused when an integer would do just fine.