system
Given the following post, respond as if you're commenting on Reddit:
human
[DCComics]Even in the best case scenario, how hard would it be for a pair of loving parents to hide a Kryptonian baby in real life?

Let's take Man of Steel and Superman in general to it's logical extremes. What difficulties would the Kents have in keeping Clark's secret from birth all the way to adulthood?
gpt
Byrne's MoS reboot from 86 explained this well.

John and Martha Kent were known to have been trying to have a baby.  She'd miscarried twice.  The birthing matrix/ship carrying Kal El to Earth landed during the beginning of a massive blizzard that kept the Kents isolated on their farm for nearly the entire winter (almost four months).  It's arrival was masked by the huge storm.  When the snow melted they presented the infant as their own, delivered on the farm during the winter months.  

Clark Kent was not born with powers.  His body is a solar battery and was gradually charged over years as he grew and developed.  His sense of invulnerability developed first, then powers like vision, speed, and eventually flight when he was nearly an adult.  Taught to keep these more extraordinary abilities a secret he would have done so easily.

Being invulnerable and in perfect health thanks to solar radiation he would have had virtually no reason to ever visit a doctor.  Any immunizations given would have been when he was an infant and not yet impervious to injections or wounds.  That being the case, no blood tests would need ever have been performed and any differences in his genetic makeup compared to that of humans would never be discovered.  

Nobody questions his origin, the ship carrying him to earth is hidden by the storm, his abilities develop slowly over time, his genetics keep him healthy and away from doctors or situations that may require physical exams and he appears human in every physical way.  

Conclusion:  It would have been quite easy for the Kents to raise Clark and present him as their own son, a perfectly normal human child.