The issue is cars, the truly dangerous mode of transportation, and any solution starts with a reduction in the harm they bring. Getting rid of the most energy-efficient mode of transportation, one that has a miniscule impact on the climate, to accommodate the most destructive form of transportation, both from a human lives lost-perspective and an environmental perspective, would be completely inane.
Eliminating cars would not reduce the risk of falling from a bicycle due to imperfection in the road, delayed reaction time, other bicyclists, etc. The flaw is in the design itself.
I'm not saying we need to eliminate bicycling. People can skydive if they want to and they can ride their bicycles outdoor as well if they desire.
The issue is cars, the truly dangerous mode of transportation, and any solution starts with a reduction in the harm they bring. Getting rid of the most energy-efficient mode of transportation, one that has a miniscule impact on the climate, to accommodate the most destructive form of transportation, both from a human lives lost-perspective and an environmental perspective, would be completely inane.