

Yes. It’s more or less the main way to get things done in a productive manner. Is the person stressed with deadlines? Giving them the safety to speak out that, for example, the constraints are unrealistic is better for everyone involved in the long run.
I was once of a more cynical disposition and automatically assumed the worst in people. It’s a very sad way to live.
I find the Wikipedia article to be wishy-washy on its content and seems to contain more buzzwords than giving the reader an idea on what it is. Better resource if one needs concrete examples: https://positivepsychology.com/non-violent-communication/#what-is-nonviolent-communication-3-real-life-examples
Check advice matching your age in https://heyfromthefuture.com/