The relevant factor is that a street where motorcycles, cycles, pedestrians, and small/slow cars are dominant – all of which move at generally slow speeds – is of far, far, far less danger than a street (freeway or not) where the primary form factor is large automobiles traveling quickly.
You're describing American cities, while GP (to whom I was responding) was clearly describing the huge number of foreign cities (e.g. SE Asia) where motorcycles are the dominant form of urban transit.
The relevant factor is that a street where motorcycles, cycles, pedestrians, and small/slow cars are dominant – all of which move at generally slow speeds – is of far, far, far less danger than a street (freeway or not) where the primary form factor is large automobiles traveling quickly.
> First year/10,000 miles is the hardest
This is typical Intermediate Syndrome. The median rider involved in a motorcycle accident has nearly 3 years of experience.
No, road defects, obstacles, and weather are almost never the cause of motorcycle accidents.