My own sensory input, do you have a better method?
Dunno, maybe. I looked at the CDC website. They list motorcycle death rates by age:
"A recent CDC study found that:
Between 2001 and 2008, more than 34,000 motorcyclists were killed and an estimated 1,222,000 persons were treated in a U.S. emergency department (ED) for a non-fatal motorcycle-related injury.
The highest death and injury rates were among 20-24 year-olds, followed by 25-29 year-olds."
But, I also know from prior reading that a younger person is more likely to survive similar injuries that an older person might succumb to. Relates to resiliency, and is an important consideration when simply looking at the death rates of some reports. Head trauma injuries, for example. The brain compacts with age so it fits looser in the skull. A helmet that slows the skull from sudden inertia changes, doesn't slow the momentum of the brain inside the skull.
There is a MAIDS Report that may interest you.
www.maids-study.eu/ I found this about it:
"A welcome finding for many cruiser riders is likely to be that motorcyclists "between 41 and 55 years of age were found to be under-represented, suggesting that they may have a lower risk of being involved in an accident when compared to other rider age categories." However, "When compared with the exposure data, 18 to 25 year old riders were found to be over-represented." This tracks with previous studies and suggests that the rising number of older riders involved in U.S. crashes might be due simply to a rising number of older riders. However, that assumes that older European and U.S. motorcyclists have common traits as riders.
There is also the older Hurt report that data may be gleaned from.
Certainly reaction times of younger persons is faster than older, suggesting they should be better able avoid accidents. But, older often means wiser, experienced, and better decision making so that reaction times or far less of a factor.
I would agree that as new rider, younger is probably more likely to survive than an older rider, particularly if both are looking for "thrills".
There is a percentage of "stupid" in any age group, though.