Why does society stereotypically believe that a girl cannot be a scientist?

Yes, I agree with the statistics that the number of mathematically minded people is higher among men. But science is not necessarily mathematics. There are many different areas.

Today the teacher said that astronomy is a science for men. Because there is a lot of physics, mathematics, mechanical calculations, etc. Although I personally know more about space than anyone in my class

Why does society stereotypically believe that a girl cannot be a scientist?
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