Go’s difficulty doesn’t come from being too hard to understand, but from being too simplistic to solve problems properly once.

Repetitive code creates more room for simple mistakes. When every case gets an ad-hoc solution it’s natural to cut corners, because it feels wasteful and too noisy to make every boilerplate copy look complicated by handling edge cases.

So you don’t have `parallel for`. Instead, each instance is a hand-rolled combo of channels that may or may not limit maximum concurrency, may not care to preserve order when items take different time to process, may not finish or report failure correctly when one of the tasks panics.

Additionally, goroutines don’t have any thread safety guarantees. Built-in types aren’t safe to share unsynchronized between goroutines, and the language is too basic to prevent accidental sharing or force immutability or synchronization. A too-easy language can put more burden on programmers.