Honestly, as an Australian living in the US, i'm not sure you have enough context. After living in both Asia and the US, we're a nanny state on this stuff. In the US, people barely ever get breathe tested and often drive drunk, speed everywhere (70-80mph is a lot faster than 110-120kmh). I've also seen Facetime in use multiple times while on the freeway.
Driving in other countries - the Americas, Asia, Europe, even the supposed peak of Western organisation and efficiency Germany had significantly poorer driving than I see in Australia.
But use of phones is an issue and I'm glad to see this being put in place.
I think driving habits and behaviours are regional.
Comparing the drivers of Newcastle, NSW and Sydney, NSW - just 160KM apart and there's a lot of weird differences.
- When merging/changing lanes - Newcastle drivers tend to speed up/close any gap if you put your indicator on, to prevent you from merging ahead of them. Sydney tends to be more permissive.
- When passing a parked car on a suburban street (single lane each direction), drivers in Sydney will continue on without deviating speed or course significantly. Newcastle drivers will slow down and cross almost entirely into the opposing lane/side of the road. Even on hills and around corners where there's a huge amount of space in their lane.
You get a variation on this in Sydney. No one wants to be behind another car so they will change lanes and speed to over take you just to improve their position by 1 car. Some will continuously do this, switch lanes with no regard of where they need to be, then create a mess for everyone when they try to merge into the lane they need to be in.