cyberdad wrote:
. . . parents were once single and likely want you to experience love and companionship from a partner like they did . . .
. . . OR . . .
. . . by the time they've been together for ~20 years,
some parents may realize they have made a Big Stupid Mistake, and do not wish to see even their own children being any smarter or happier.
(e.g., Jealousy)
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The mere fact that science may not yet adequately explain an object, event, or experience does not mean the immediate explanation should automatically default to a conspiratorial, extraterrestrial, paranormal, or supernatural cause.