The decline in learning and problem-solving skills leads to a gradual loss of the ability to travel to unfamiliar or seldom-visited places. While it is not a bad thing that some of the patients in the early stages of the disease are still active and like to go out, they often overestimate their abilities and think that they can learn how to get to and from a certain place after being verbally instructed once or twice by someone else. In fact, even if they can learn how to do it, it takes a long time for them to practice and be guided by others. In addition, they have to deal with unexpected problems on their own during the journey, such as diversion of routes, change of landmarks or shops that they are used to recognizing, etc., which may cause additional difficulties and lead to getting lost.