It would be "absolutely pointless" to make that broadcast on
any frequency. If the standards of training and airmanship deteriorate to the point at which a pilot would consider otherwise, the industry will have far bigger problems to deal with.
And Dick: I was only making the point that you don't need 2 VHFs to be able to monitor 2 VHF frequencies. Even if you are successful in getting VHF removed as a requirement for VFR aircraft in ForG and E in Australia, people can still choose to have VHF. And I thought it was you advocating the benefits of monitoring and broadcasting MAYDAY on 121.5 in an emergency. Bit difficult to broadcast a MAYDAY on 121.5 if you don't have a VHF. (Of course, an ELT and PLB that comply with the required standards
will transmit on 121.5 as well as 406 ..
..)