An unidentified man reflected in a mirror in his caravan at a traveller halting site in west County Dublin. Traveller training centres are the worst thing that ever happened to the travelling community, it was claimed Friday December 30, 2005. There are 33 centres around Ireland which teach a variety of academic and practical subjects to travellers over the age of 15. See PA story SOCIAL Travellers_Ireland. PRESS ASSOCIATION Photo. Photo credit should read: Julien Behal/PA.