Note there is nothing to prevent rearward-facing child restraints for older children being sold in Australia - the Australian Standard provides for them. However, in general, they are not practical to use in the rear seat of most cars (the safest position for children) and there appears to be no market for them.
Australian child restraints perform exceptional well in severe car crashes. The lesson is, Australia should not rush into using ISOFIX
The best DRL solution is low-powered (LED?) dedicated DRLs with a light sensor to switch to headlights when ambient light levels drop.