1) Do you prefer Joined-up or Un-joined handwriting
Un-joined and sometimes joined-up, i had a tendency to change my handwriting the longer i am writing for like essays for example
2) Are "teachers" more likely to favour Joined-up handwriting over Un-joined or vice versa.
They don't care
3) Does Un-joined look "un-educated" in your eyes? (It doesn't that much to me unless the spaces inbetween letters are huge D
No not at all, it depends on your quality of writing.