Bigtone53 wrote:...If a snap-shot of left-handedness shows that the percentages of left-handers drops off according to age, does this not suggest that we are producing a higher proportion of left-handers these days (ie among the young) than before? So they are not disappearing but expanding!
This is also true, that's statistics for you.
It all depends on the pecentage of the population born left-handed each year/decade, if this has been constant, say over the last century, then left-handers are dying younger or more prone to emigrating.
If the percentage has been increasing linearly each year/decade, then the previous wiki quote has no real significance.
MCC