[marhee]

Concurrent programming is hard and has many pitfalls; people are warned about this from the very, very start. If you then go about it without studying proper usage/common pitfalls and do not use (very) defensive coding practices (violated by all examples) then the main issue is just naivity. No programming language can really defend against that.

[gf000]

You are completely dismissing language design.

Also, these are minimal reproducers, the exact same mistakes can trivially happen in larger codebases across multiple files, where you wouldn't notice them immediately.

[LtWorf]

The whole point of not using C is that such pitfalls shouldn't compile in other languages.