It's a degree scale: you can choose any number you want.
Here, it's a question of resolution, with a proven history that transitions screw the consumer, though maybe it won't be so. We're ok with arbitrary hundredths of a dollar, why were we not at thousandths? The American half cent disappeared a long time ago. You still need to include the cents in a tax bill that runs into the millions of dollars.
It's just an awkward stage in inflation. Eventually a US dollar will be worth what a Zimbabwean dollar was, and we won't have $100 bills anymore.
If you have a long runway and a long runout, you have a much higher V1 than a short runway with tall clearance right at the end, right?
In tennis, being too tall is clearly net bad, but being too short is also definitely bad. 80% of male pro tennis players are 5'10" - 6'4", which is certainly not the statistics of the general population.
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2. It needs to be confirmed in ~10 years, but it seems very likely that women given the shots that protect against all high risk HPV types will see almost no infections from them.