
Every time I went by this pony in it's field it seemed lonely and when I rode my cob by the field it positively galloped across to say hello, afraid of it's own kind, nonsense!
Horses and ponies are by nature social animals. If you only own one horse it is far better to keep it at grass livery with others or even near others if it really does have a problem being integrated with a herd. If they do not have their own kind with them they can become depressed and inactive. Some of them become so human bound that if you're late they stress out. It's not good for their nature to become so bound up with humans that they forget they're a horse. They like both but definitely need their own kind first. Maybe think of adopting a companion horse or pony from one of the many charities that are overrun with equines needing new homes or get a friend to put their horse in with yours, it makes for more fun riding too.
I know some people don't want to put their horses in with a herd because they're afraid of getting their horses out to ride. This is our problem and should not influence our decision to do what's right for our equines. Get some help from an expert to get you over your fears but let your horse be a horse.
The main thing we should try not to forget are the basic needs of every horse, every day:
a) Freedom of movement in fields (large enough for natural movement).
b) Companions for herd life (one or more other equines to live and play with).
c) Free choice of grazing at ground level (the more wild plants the better).
d) Daily exposure to water for hooves (natural streams or even man made watering holes).
e) Barefoot, if possible (get those shoes off).
f) No clothing, as nature intended (let them feel the elements).
I know that sometimes stables are needed, rugs are necessary and barefoot can't always be done BUT doing things more naturally for the horse as much as we can will help keep them from illness, vices and unwanted behaviours.
Horses are herd animals....let them be horses ;)