Not everyone who is entitled to social benefits receives them. Some don't even apply for them because they either don't know they're entitled to them or don't even apply for them. This is a phenomenon known as non-take-up or coverage gap, leaving thousands of vulnerable people without protection. It is estimated that in Catalonia, 79% of families with children who could receive the childhood supplement do not; 18% of people who meet the requirements for the guaranteed citizen income do not benefit, and 66% of potential users of the minimum living income (IMV) do not either.