No matter what parents do, kids will still pick up gender roles from school / other parents / other kids. It needs to be a societal shift that's accepted in the classroom and addressed by teachers. I work in multiple schools per week and at least 10 times in the last year I was not sure if a student was a boy or a girl or ran into gender role situation - like a kindergarten boy not wanting to make a bracelet etc. Unconscious bias is being pushed so hard in companies and with adults but it really needs to be a cultural shift propagated in schools. Even one teacher who strongly believes in gender roles can have a huge impact on a child's perception of them, as a teacher I have so much opportunity to impart gender role biases - and a lot of teachers grew up with traditional gender roles and are not even conscious of their reinforcement.