Ds's (year 10) handwriting is pretty crap. Really tiny and messy but legible if you concentrate. His teachers don't comment on it when marking homework, assignments etc but I think it must be very difficult to read, especially when they've got loads of other pieces of work to get through. We've told ds that he needs to make more effort to make it more easily legible as examiners might not be as understanding as his teachers when it comes to marking his work. How much of an issue is this? Should we be more insistent? Should we raise it with his teachers?