There used to be a statistic that went something like this..."90% of the fatalities on motorcycles come in the first week of ownership".
Young folks get a bike and just start to be familiar with the rudiments of operation and make a mental error and PFFFFFT!
The physical part of operating a bike is just a small part of the needed skills to survive. The mental alertness and suspicion of every other machine on the roads required to survive takes a good while to build up.
Be careful indeed.
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.

[SIGPIC]
..I also have a 427 Cobra replica with an aluminum chassis.