Yes, if one is modest and sensible, this is true. What is the Venn diagram overlap of that type with young motorcyclists? What young buck doesn't "see how fast it will go" the first week? Who buys a sportbike to toodle around at 3500rpm?
I've actually never ridden a true sportbike, but I hear that like a Gixxer has a point where there is a huge increase in acceleration, "V-TEC just kicked in" style. Pairing that with a newb with poor throttle control skills and you increase risk. Especially as these high revving things can feel downright slow at low rpm. Like with a car, you want a forgiving machine where you can explore limits but still be able to recover. I high center of gravity bike with a peaky power curve is less than ideal.
Also, there is the issue of squids that never learn to corner worth a damn, and try to make up for it with raw straight line acceleration. I used to see these types all the time on literbikes. They'd blow down the highway at 85+, and then come to an exit ramp and slow waaay down. I'd fly past them on my little toy. It's easier to learn on a light little slow bike. It also forces you to really maximize what the machine can do by preserving speed.
This is about cars, at a track, but the same principle applies.
There are a lot of different skills that make up the toolbox of a top-shelf track rat or club racer, but perhaps the two most important ones are entry speed estimation and midcorner control... The problem is this: if you start with a car that arrives at a corner in a big hurry, you won't be able to exercise fine-grained control over your corner entry speed. Let's say you're heading towards China Beach at Mid-Ohio. In a stock Miata, you'll arrive at 105mph; in a Boxster, 135; in a Z06, 160; in a LaFerrari, maybe 180. Now let's say that you need to practice choosing the right speed between 46mph and 49mph to hit the apex of that downhill right-hander. Do you think you'll be more precise if you're starting from 105, or from 180?
