[weakfish]

Can’t the parent wait by simply using the waitgroup sync functionality? That’s what I’ve been doing in my greenfield Go project at work.

[dontlaugh]

Sure, but you can neglect to do it or get it wrong. The language could expose primitives that don’t allow it instead.

In practice, where I work we disallow the go keyword in review and require use of a wrapper that takes in a closure and also is a wait group. It’s much harder to get wrong.