The family is a social institution. It is beautiful to see a mother and her children together because it reflects the natural love and the affectability that exists between her and her offsprings. In Leiden, the parental concept is very visible in the streets because it is found that the parents and their children are at the edge of a bicycle (the parents and their children: case where all drive together; the case where the mother also pilot alone). Education is one of the priorities of the population of this city of the Netherlands.