I think there is some level of truth to this story be it from more of "symbolic" example.The environment the Gem is raised in has a high importance on how the Gemini both male and female turn out.
As soon as I read Iggy Azalea dropped out of High School or how lucky Trump is at bouncy back whenever he has a set back in his early life, it all makes sense.
I can't speak for all Geminis, but I have a 4th house Taurus IC so I grew up in a warm loving environment. When I sense a toxic environment if it be work or city I try to get out immediately, I could never live in Detroit for example.
When the conditions are right I'm normally happy go lucky!!!.
I think a better example of a Gemini/Sagittarious opposition would be my uncle and I.
Sag. and Gemini can have some similarities.
My Sag uncle and I generally get along well.
We both like traveling...but the similarities end there. He's more interested in traveling to places to learn the people and culture.
I'm more interested in the natural landscape.
In other words he would rather go to Machu Picchu and see how society developed while I would rather go to the Kilauea volcano in Hawaii.
My Planets
=========================================
☉ ♊, ☽ ♈, ASC ♑, ☿ ♊, ♀ ♉, ♂ ♋ , ♃ ♒,
♄ ♏, ♅ ♐, ♆ ♑, ♇