There was research done in various nordic countries that when men and women are free from severe economic selection pressure, They naturally prefer different roles something like nurse vs construction worker.

Also area's like India,when men and women are under more economic pressure, there is more gender equal distribution in fields.

I've had this explained to me as the "Nordic Paradox".

You didn't get my point.

If women in Sweden are doing the same career choices as in Saudi Arabia, as a matter of fact one can rule out the society as a factor.

Unless you want to believe that Saudi Arabia and Sweden are equally oppressive to women.

It clearly must be something biological.