Learning to code is easy... Fixing the errors is what makes you a true coder.

Or writing actual useful things instead of hello-world.

@metamourge exactly

Or how about:
- writing resilient code with proper error handling
- writing readable code
- writing efficient code
- writing tests
- handling concurrency
- reading and debugging code written by others
- writing proper documentation
- knowing architectures and design patterns
- work in teams or alone
- estimation and time boxing

Coding is easy at the baseline, anyone can teach themselves if statements and loops. Once you scale up the complexity, it's not easy.