The design speed for all our freeways was 130km/h. Yet we are limited to 110km/h. This suggests to me that there is something wrong with the way in which speed limits are determined.
Not true.
According to recent studies, age and experience are separate variables (younger drivers more affected by peer group pressure, less developed brains, etc)
For example, in a recent study conducted in the US, an 18 yr old with 1 yr of experience had a rate of 0.223 crashes/individual, while a 25 yr old with 1 yr of experience had a rate of 0.108 crashes/individual. That means you're double as likely to have an accident if you start driving young.
Um we have already reached a point where we justify deaths based on the freedom to drive. Society has judged that it would rather have a road toll than banning cars completely, which is the only way to prevent all car related deaths.