The ability to write coherently is actually a skill that transfers well between languages. A lot of people learning English as a second or third language actual

The ability to write coherently is actually a skill that transfers well between languages. A lot of people learning English as a second or third language actually can't express themselves in their native language that well either. The skill here is learning to write, not to write English. I was lucky to have a good teacher in high school teaching the basics of writing properly (in Dutch). I paid attention and figured out pretty quickly that writing follows rules and that anything you do structurally wrong you can learn to do structurally right. Later when doing my Ph. D., I had to learn to write in English. Same thing. Same rules. Different grammar and vocabulary. And a bit more scrutiny from your peers who will tell you when you are being incoherent, waffling, etc.