Kate
Sorry you are feeling down about this.
Try and weigh up the odds of anything bad happening. Unless you haven't mentioned it, I don't think there have been any bad incidents for months and months have there?
The kids are fine - they are tougher than you think and they are sensible so will be ok at school.
We all had fights at school - it was normal playground behaviour.
If they see you worrying over them then it will rub off on them and may make them worry too.
Try to see that there is nowhere perfect in the country to live. There will be trouble in every town, village, city etc.
You can do this so just keep telling yourself that you can and they are fine. If you don't then what will happen when they leave home? It will take over your life with worry.
Hope things work out ok mate
xxx
Nicola