Gender roles

In our society we have a lot of traditions, manners, and expectations, some of them criticized now a days for our (the new) generation. It's true that times are changing but is also true that they change about 20 o 30 years regularly.
As we said before a lot of things are being criticized but I would like to speak of one in particular: gender roles and how they are taught between generations, making them like a nartural orden in human relations.
There are not much information about gender roles in first childhood, this specific point haven't been spoken loudly or studied by a lot of people but that doesn't mean that it is not happening. The generations of this years of primary education in the institution have noticed and started studying this, so too another organizations for the education in the university, but the only "relevant" or recognized published papers or texts that talk about this are a little bit old: from the first ideas of feminism.
This ideas have spoken a lot about gender roles, and a thing I found interesting about this is how we pass this concepts. We can clearly see in first childhood education spaces how the adult world dominate absolutely everything and teaches preconcieved ideas.
That is the place I would like to study: what speeches do we have and why we do not cuestionate them?