Nouakchott, Mauritania – Moulay Ould Rais waited to pick up his son and daughter from a government-owned school in Nouakchott’s Sahraoui neighbourhood. As the closing bell rang at the Abdellahi Ould Nouegued Basic School, streams of pre-teen children rushed out into the hallways with their bulky schoolbags and lunch boxes. Recommended Stories list of 4 items list 1 of 4 ‘Endless grief’: Turkiye mourns victims of second school shooting in a week list 2 of 4 ‘Take up space’: Young models on mission to showcase South Sudanese talent list 3 of 4 Turkiye MPs pass bill to restrict social media use for children under 15 list 4 of 4 Ireland to demand Israel pay for settler demolition of Palestinian school end of list It was a Friday, so there was joy in the air as the weekend neared. Retired engineer Rais, 67, was feeling optimistic for other reasons – he had hope in new changes to the school system.…