[codebje]

General purpose programming languages are complex tools.

In this specific case representing non-integer numbers effectively on a binary device is complex. If you use a different representation than IEEE floats you just give a different set of corner cases and unexpected outcomes.

Don't let a novice build software you need to be correct without supervision, and if you are a novice expect to make mistakes, just like if I were to build a website I wouldn't expect my style choices to render appropriately on a wide range of devices... that's complex too!