However, to ensure that children can access ECEC services is not enough; positive results for children can only be achieved if the level of quality of these services is high. Otherwise, children may even be harmed by low quality care and education. For instance, when world leaders in 2015 defined the global ambitions for the next 15 years by adopting 17 Sustainable Development Goals (SDGs) at the United Nations Summit in New York, they first considered "Education" as a cornerstone of the sustainable development agenda.