If I lived close to my daughter, I would just call in for a coffee and chat perhaps a couple of times a week. Now I have a 40-hour journey and stay for six weeks. I do take myself out for walks and she lends me her car to go exploring when she is busy, but I do feel that it is a bit of an imposition of her and her lovely husband. I suggested that I just stay for two weeks, but they wouldn't hear of it and they both say they love having me there.
Last year, I took a week out to visit the fjiords and glaciers, and this year I am spending the first week touring North Island. I do offer to help, but she has been used to working full time as well as studying and bringing up six children, so she is ultra efficient and now she doesn't have to work she is really on top of the chores. My SIL is equally useful and they enjoy working together in the garden and with the animals. In their current home, I could walk to the local shop but they will be in their lovely new house on 1st November and it is more remote. I will still be able to feed the animals, or perhaps pick up the children from school once they are no longer using the school bus.
It helps that I am in constant contact with her and the children via Facebook and free phone calls, but I can understand why there might be some tension during a long visit if that is not possible.
It is also likely that we long distance mothers build up great hopes before our holidays and if everything is not just as we hoped it can feel like a big let-down. I am very lucky that my daughter and her family are all so relaxed and happy, but I can sympathise completely with both mother and daughter if there is some tension.