To me schemas are absolutely essential for high quality software, I have a hard time imagining a project where I wouldn't want to use them. I also often make h

To me schemas are absolutely essential for high quality software, I have a hard time imagining a project where I wouldn't want to use them. I also often make heavy use of schema based editors to auto-generate UI. Perhaps I'd feel differently if I ever had to write a validator myself, but they seem to exist in all the popular languages as is.