Originally Posted by PaintHorseMares
You can make it on 1/2 acre without a problem, but you will have to feed hay year round, clean up manure, and you'll have lots of mud. If you don't mind the extra work, you'll be fine.
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Having always been privileged to have my horses on large acreage (even as a child), half acre to me is not fine and the horse will indeed involve four times the work and hay. It will need less in the feed pan but more hay, plenty of fresh water and a salt block.
ESPECIALLY having a plan to get rid of the manure, unless you want to see your horse's hooves full of thrush all the time and possibly have to deal with white line.
You could always create a compost pile but all of this is going to take major help from your parents.
Tractor Supply does have books that talk about managing horses on small property.
I hate to be the naysayer here but I am sorry, I vote no unless you can find a way to extend that half acre to three acres.
Or you in live in Southern California where there is no grass and all that extra work is a way life for anyone keeping horses in the Low Desert areas