I need some input guys. So, a friend is going to buy the yearling we are selling. They are great people and I know she will have an awesome home, plus we will still get to see her all the time. They have owned horses before, but I would not call them "experienced" and I have already discussed the need for training when the time comes and all that jazz. Got that covered. BUT, the main thing I'm concerned about is that they have no other horses, so she will be by herself. She is very buddy sour in the pasture right now and couldn't care less about us or being handled or messed with. She is halter broke and will lead, bathe, tie, let you pick up her feet, etc... but you gotta catch her first!! She is not a playful filly and has a very laid back demeanor. She already knows the boundaries with the other horses and willingly submits to the boss gelding. (they used to be in the same paddock in TN and he was like an adoptive parent to her lol, but he will sure whop her one at feeding time!)
My feelings hurt for her to imagine her alone in a strange new place and not having the comfort of another horse. The people buying her do have goats, so it's not like she would be isolated and have no other life forms around at least. The biggest concern is proper development and not being in a herd. Being 15 months has she had enough herd time to learn how to have respect, boundaries, etc? I don't want to set them up to have a problem horse later on, but more importantly I don't want to ruin her before she even has a chance!
To give more detail and clarify - Right now she is in a pasture with a long yearling, and Pan because of weaning Pan. The other 3 grown horses are in the adjacent paddock separated only by wire fencing. Prior to this all of my horses were together here, and before that she has always been with a herd since she was born.