While it is understandable that you may feel frustrated when someone's home is much tidier than you had expected, it is important to recognize that different people have varying levels of cleanliness that they find comfortable. Just as you do not appreciate your own mess being judged by outsiders, it is necessary to respect the choices of others and to not impose your opinion of cleanliness standards on them. Though you may not find tidiness important, it is a personal preference and can be a source of pride for some people - it is not always an indication of false modesty or undeserved embarrassment. It is wrong to assume that everyone should have the same standards of cleanliness; everyone should be allowed to choose their own level of tidiness without fear of judgment.