In the mid-1990s, many "city health officials, architects, city planners, and politicians still argue that no one should live in hotels", which are viewed as leading to "severe social and physical maladjustment" and "public nuisance." Apart from media criticism, SRO residents are typically "unseen" and "invisible" in housing reform policies and reforms. SRO residents are typically not referred to explicitly in legislation, considered by city housing communities and urban development efforts, which means that SRO residents often have to move from district to district according to changes in real estate planning. San Francisco architect John Liu called SRO hotels the "most controversial, the most neglected, and the least understood of all housing types." The invisibility of SRO residents is caused by a lack of interest in the lives of the poor and in their lack of a "political constituency", as most housing policy focuses on the family. With the huge reductions in the number of SRO rooms available to the lowest-income populations in the US, the role of SROs is being taken over by homeless shelters; however, many homeless people avoid staying at shelters because they find them to be "dangerous and unappealing" or because they do not meet entry requirements (due to being intoxicated), leading to more people sleeping on the streets.