As NoGoal stated the players are responsible to get to the tryouts or in our case this past April to the camp. Once at the camp the Federation houses them, feeds them, transports them etc. After the 30 day camp concludes the final roster is flown to the event with coaches, medical, and a federation representative to the competition, latest being the Asian U15 Championships. The team and staff is put up in a hotel and they have a security detail taking them to and from the venues. The team competes in group play like any FIFA sanction event and moves on all the way to the finals if they make it. In this case they got the Silver medal losing to Thailand for the 2nd year in a row in the championship. The team flys back, has a media day and the players are released to their parents. The whole cost for a YNT to have a camp and compete in a major tournament is north of 200K US dollars. Women's football around the world is exploding. Thailand in preparation for U15 Championships took on Japan and loss 2-1 in a friendly just before the tournament. They train year round in Academy style school. The styles are fascinating from the different nations and the final had 190,000 viewers in Asia watching it live streamed. Hope this info is informative good luck.