Difference and being complementary to each other are fine as long as there is fair division of labour and equal recognition for what each person brings to the relationship and society. I'm happy for stronger people to take on hard psysical tasks at home and I'm sure they don't mind me doing the intricate, fiddly things they find hard. At work, that could be very different, when we have technology and machinery that any gender could use. I struggle to get why men and women confine themselves to certain roles, though, especially when they miss out on the benefits of having done them. I do think that there should be some adjustment for women bearing and feeding babies so that they aren't disadvantaged when they get to retirement age, and this is still evidently not happening everywhere.