Balancing the Benefits

Just a short post for now. I will breakdown the weekend later.

Part of that weekend included Dottie's college student coming and riding her. She seems to mostly take her out and hack around the fields. The day she came, I told her that Dottie was very dirty. It rained the night before and she found a nice muddy spot.
I was surprised when a short time later she was already tacking her up. Dottie is a 16h draft cross so there is a lot of body mass to brush. I bit my tongue and kept working.
That evening as I was fly spraying and applying bug balm, I found that Dottie's belly was covered with dirt. She had not touched her belly. Closer inspection found some dirt at the upper part of her neck too. Geez, I do not mind a quick groom. We keep our horses pretty clean. But if I do a quick brush I make sure to groom the places where tack makes contact or are prone to sweat.
So the question is do we address the issue with the girl? She is only here for the summer and Dottie is starting to get into shape.
Most likely we will monitor Dottie closely to make sure she does not get any chafing or sores. It is hard  because she loves to be groomed.
Right now her riding is more beneficial than her lack of grooming is detrimental, so we shall see. We do not micromanage her, but we want to be aware of what is happening with Dottie.