Seems CASA can be blamed for everything, even the lack of DAMEs in an area. I thought they were responsible for approving not sourcing medicos...but I amy be wrong. On the one hand we have the industry (AOPA) saying they can do it all and then on the other we have the industry saying 'CASA should do this'. But in the end, if you don't have a valid medical, you just don't fly...full stop. If the aircraft is not airworthy (administratively or practically)...you just don't fly. It sounds simplistic but the insurance issues, the legal issues and the personal issues when something goes wrong just isn't worth it.