Children can be at risk of disadvantage because of their individual circumstances or because they, or their families belong to a group which is disadvantaged in society. These children may include those with disabilities, with mental health problems, in alternative care, at risk of neglect/abuse, undocumented child migrants/asylum seekers, those whose families live in poverty or are socially disadvantaged, those whose families have a migrant and/or second language background, those whose families have limited access to services, Roma and traveller children (European Commission, 2018a).