I agree with everything Tantrums & Janey have said (again!).
My boys have been in full time childcare since 6 months old. They are happy, they often used to get pissed off when I picked them up early.
Around about the time each of them hit 5/6 they both started to question why some parents don't work (up until then they had probably assumed that all parents did as they were at nursery so only saw working parents picking up their children). They couldn't understand why some people were at home all day when their children were at school, because they had never experienced it themselves.
Now my eldest has just started secondary school, in his english class they had to say who their heroes were - my boy said me. When he had to 'interview a member of his family about how science is used in their work', he interviewed me, not his dad.
I firmly believe that by me working my boys are growing up just accepting that women are equally as capable as men, they earn the same money as men and are equally responsible for child rearing and housework etc with men (it is actually very important to me that my boys grow up with this attitude re women).
By me (and their dad) working, they just assume that they will work when they leave school - because they don't have experience of people not working.
I am sick to the back teeth of the constant belittling of women, by women, of the choices they make for themselves and their families. What is right for me may not be right for you, and vice versa (this refers to the bashing of SAHP as well as WOHP).