There are negative effects associated with placing women at second position.
Firstly, they will be treated as not important or of no value compared to men. This will make them to become easy targets or vulnerable to being abused or treated with disdain.
Secondly, they won't fulfil or get to do what they want. This is because they will be regarded as not worthy to work anywhere except at home and in the farm. This was the case in the African setting before Africa was colonized.
Thirdly, it will lead to early marriages. Since they will be regarded as of no value, it will be easier to force them to be married at an early age. They will be treated as a property, not as human beings.