system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Is there any particular reason the Force impregnated a human with the Chosen One?
gpt
Which particular bit are you questioning?

Humans are the majority of the population of the Galaxy. Pick a random sentient, they're likely to be a human.

Furthermore, the old EU blames the whole shenanigan on Darth Plagueis the Wise tinkering with the Force. Both the Jedi and the Sith have their concepts of messianic figures.