It means that renting a house is almost as stable as buying a house and enjoys the same welfare and education rights.
Japanese children's benefits such as enrollment, employment and old-age insurance are not with the house, but with people. Even if you rent a house, you can go to school nearby, and there is no problem of children settling in school at all.
Japanese people will also have job transfers. If they rent a house, the whole family can change with the change of the workplace, which is more convenient.