That's interesting thanks. There are sheep available but they aren't exactly horses. I could get a companion pony that my children could ride but it wouldn't be particularly safe for them to ride on a bridleway by open moorland.
My horse can be a bit stressy so probably will be one that can't cope with being alone.
Think I will just ask around for a small companion but given that grazing is so hard to find the poor ****** will prob end up staying where he is
Interesting about the legalities. There are several horses around me that DO live on their own and as far as I know there haven't been any prosecutions!