Do you honestly believe that a casual worker, flexicrew or agency working is really going to challenge the T+Cs at their airline when bugger all else exists for them in the work place and they may stand a chance of a a renewal or permanent contract in the future? The other side of the coin is that on some contracts the " agency" worker is actually getting more net pay than the permanent guy due to " tax evasion". They accept lack of Holiday pay, health insurance, loss of licence and staff travel in lieu of this.If you are unemployed and someone is keeping you flying and current, you are unlikely to complain. Arguments for both sides I guess