And long may folk such as Shortstripper continue to enjoy basic VFR flight freedom without some suit in the Belgrano requiring them to fit a transponder!
There should reasonably be no difficulty in denoting low level VFR-only Class E routes within Class D CAS to afford access to non-tranponder equipped aircraft of less than 2000kg.
The cost of fitting a transponder to an aircraft which does not have an electrical system or height encoding altimeter is not insignificant. It most certainly would affect a lot of people if this stupid 'Mode S-for-all' idea ever became reality.