In Germany, according to the Land in which the stay takes place (Eg. Rhine-Westphalia, Baden-Wuerttemberg, Bavaria) the Spanish child have the opportunity to go to the school where the children of the host family study. The Germans state schools admit Spanish children at no cost, after the necessary formalities.
Apart from the obligation to attend classes at school (except holiday period in Germany) the Spanish child spend time with the family while adapting to the customs of the country.
The host family receives an amount of money every week from the Spanish family, without intermediaries.
The Homestay is a low cost option to send your children abroad and to practice the language.