Legal supervision will discourage independent planning  The law should encourage people to plan adequately: individual people are different and one size does not fit all. If the state plans how your property should be owned, this fails to provide for each individual’s specific lifestyle and circumstances. An increasing number of couples enter cohabitation contracts (where they agree how to split property if they separate) and this should be encouraged instead of automatic rights.  That is why some countries (like the US) offer cohabitation agreements, which is s a written agreement that governs the rights and obligations of two people who are in a relationship and live together in a shared residence. [1]  [1]