The drawback: only works on new lifeforms. Still, that could be a marvelous gift to our children; A methuselah-like lifespan would be a tremendous gift to give your child.
Paging Stef Molyneux! This explanation actually holds water; people continue childhood behaviors long after they are productive or useful to them. And neglect tends to produce unusual levels of tantrums and chimp-outs.
See, you didn't sign your boys up to be soldiers, so we're gonna give it to people totally dependent on us -- Always count on government to discriminate in favor of those guaranteed to vote for more government.
Oh noes, they explode, better ban 'em! You'll have to ban laptops, electric cars, etc too, since they all have the same possible weakness with their batteries.
I suspect an alternative form of proof may be made now that definitive analysis of the pattern can be made, having the exhaustive set available for analysis.
