There are so many threads on here from people in real distress because they are worried about something going on at school - and they don't seem to have taken what seems to me to be the first logical step, which is to go and talk to the teacher. And presumably this applies across the population.
Now, why is that? I am a governor at a school that is trying to improves its home/school links. What stops people going up to the teacher at home time and asking for a word? Or popping in in the morning and asking the teacher to ring them when they are free? Or sending in a note asking the teacher to phone?