I admit I was just as worried as you are when I first brought my horse home but it didn't take long to realize that I actually worry less with them at home. No worrying about what someone else may do to them or if they are getting fed properly, etc.

Having horsey neighbors helps ease you mind too. My neighbor's horses were just loose this am so I went over and put them back in the pasture and fixed the fence. She would do the same for me in a heartbeat, as would my other horsey neighbors.

Best of luck to you!