I knew young lads in their very early 20`s. Didn't last 24 - 36 months on earth after getting a bike.
Mind you I live in rural Wales, a car pulls out onto a windy road and bike goes straight into them.
Well, there is always the danger that other motorists underestimate the speed of motorcycles - if they see them at all ... ---
Years ago, I went with my young motorcycling colleagues across our company parking lot and showed them, how few cars
had clean rear-view mirrors, thus being unable to see them when overtaking.
What kept me alive - apart from luck - was extreme caution, never riding in a group, a high-power police horn to clarify situations,
and even a rear fog-light after almost being run down in fog in Belgium on my way to the ferry at Ostende.
Once, in town a car went into my path at a crossing. Despite breaking maximally, I hit it, went down. Fortunately, unharmed. ---
On a country road at night, at around 90 mph, a deer crossed my path 15 meters in front of me, I could not have done anything.
Near-misses like this made my quit motorcycling. --- It was a wonderful time ...