> The problems come when they try to learn a new language without giving up the old ways In Python, I frequently see the same problem from the other side. Inst

> The problems come when they try to learn a new language without giving up the old ways In Python, I frequently see the same problem from the other side. Instead of C/C++ programmers learning Rust and "not wanting to learn the rules of Rust", it's Java/C# programmers learning Python and not wanting to unlearn the rules of Java/C#. They write three times as much code as they need to - introducing full class hierarchies where a few duck-typed functions would do.