We asked the people are going to be using it what they'd prefer. Many of them are recent graduates, and they told us they mostly used R during their university

We asked the people are going to be using it what they'd prefer. Many of them are recent graduates, and they told us they mostly used R during their university courses. It's just a pure familiarity play. The alternative was building a huge system on a mainframe (we're a legacy bank). Really there wasn't a lot of thought put into the language. We figure that if it ends up being a total failure, we can just pivot.