These children are playing at a Gaelic medium school in Carnish, North Uist, which lies in the middle of the Hebrides.
Although there are some schools where Gaelic is taught like Carnish, it is not compulsory in Scotland to teach children the language. There are many who see Gaelic as the native language of Scotland, but it hasn't got the same official status as either Irish or Welsh have in there own countries.
Many parents of children in the Gaelic medium schools that do exist in Scotland are not Gaelic speakers themselves, but prefer that their children learn the language.