Remote-controlled robot jockeys have made their debut as camel riders in the United Arab Emirates, competing in a trial race after the Gulf Arab state tightened a ban on child jockeys. Robots weighing up to 15kg were dressed in the clothes of human jockeys during the race held in the capital Abu Dhabi recently. The UAE outlawed using children under 18 in camel races, a practice condemned internationally as a form of slavery. UAE officials plan to order up to 10,000 robots from Asian countries at the cost of about $2000 each.