She appears to be in good health for her age---owners have had her for 7 years and 1 family before that. She is on just hay, no grain and came through a very cold/snowy winter just fine with only a run in (no blanket, etc).
I know she will need her teeth floated and her feet done but she did ride over gravel/stones without missing a step.
The lady is asking $1500 for her which I know is very high in the current horse market when so many horses are free or nearly free. Problem is, most of them are not the super safe, follow mom's horse down the trail type horse. Also, horses in the 13-14hh range are hard to find. Her size would allow my dd to show in 4H (pony has 12 years experience showing) in the pony class where competition is much less and there is not the craziness of classes of 20+ kids trying to all lope in a circle.
Would it be worth a vet check or for this price, just take your chances? She had a coggins pulled and her spring shots last week.