Iin, that i've chosen not to marry /havekids because i am nearsighted?
I've chosen not to have any kids, for a reason many people might call unreasonable. I am nearsighted 6 diopters in my left eye, and 3 diopters in my right. Nearsightedness runs in my family, so this is a GENETIC, heritable deal.
The thing is, I've read up on our current world situation, especially energy resources. Among other HUGE problems we're running out of oil ("Peak Oil")... and using coal will turn the Earth into an overheated, uninhabitable wasteland. Nuclear apparently can't be made to work safely (or if it can, it can't be made politically acceptable until there's no other options, at which time there will be no fossil fuels left to build a nuclear infrastructure.) "Wind and Solar" is a pitiable, feeble, low-enery-return, sick joke... a dog-and-pony show designed for the politicians to say, "hey, we're DOING SOMETHING!"
And fusion? It's just 20 years away, and always will be.
Pollution is completely out of hand... in the Pacific ocean there is now six pounds of PLASTIC TRASH for every pound of plankton. As it breaks down, this plastic releases a stew of chemicals into the seawater, poisoning everything which comes into contact with it. (What will happen to atmospheric CO2 levels/global tempertures/the world's agriculture when all the CO2-consuming plankton in the ocean is dead? You guess.)
The upshot of all this is, we're headed into a new Dark Age. And it will NEVER END as this time... there will be NO Renaissance, EVER. The new Dark Age will be GLOBAL this time, and will probably last for thousands of years... by which time we'll have degenerated into insect-and-booger-eating, probably cannibalistic (what else will there be to hunt?) cave dwellers who have forgotten that our world and its wonders ever existed, "living" (existing actually) on a desolate, resource-depleted Earth which will take approximately 200 million years to regenerate its fossil fuel supply (and you can't have a return of technological society, without fossil fuels to kick-start it!)
Such a world will be no place for nearsighted people (or any other form of disadvantaged people.) Anyone who is less fit/quick-reflexed/sharp-witted than Rambo or Conan The Barbarian will probably be made into a slave, used as some alpha dog's sex-toy, or simply have their head smashed in by their parents at birth. (Slavery will almost certainly return as our Machine Age comes to an end... after all, lots of agricultural workers will be needed. And for centuries to come, the elites will probably still want ELECTRICITY, and will happily force the less powerful to scavenge materials and crank generators to produce it.)
I foresee humanity descending into a nightmare which will never end... and I choose not to father children who will be doomed to a life of slavery, harem whoredom, or beggary. Would you say my choice is a normal one?