Consider This (Vaccines)

Imagine a scenario where you have 2 options:
-Take a vaccine
-Don't take a vaccine

If you take the vaccine you live a healthier life, meaning you are less susceptible to common colds and other small-time sicknesses, but you are pre-programmed to die at ~60 years old.

If you don't take the vaccine you will get headcolds, sicknesses, and other ailments, but you will be able to live out the entirety of your lifespan as ordained by your DNA and life's circumstances.

Which do you choose?

By the time this whole program is implemented there will be a semi-hard death date for all people, allowing for easier eugenics without any sort of proof of what is causing it. Some die at 60, others at 65, but the outcome is the same. The golden years are eliminated from the population after just one generation as the vax becomes an integral part of the child rearing process, even from birth.

Would anyone ever know? How long until every who knows isn't around?