The answer to this is subject to debate, but I would argue that the war did not really change attitudes towards women and family in any serious way.
During the war, women of course took on roles that had never been open to them. The "Rosie the Riveter" women who went to work in defense factories are a very good example of this. However, women did not continue to work in these new roles once the war was over. Instead, there was a real return to a society in which women's place was in the home. With the baby boom, women went right back to being wives and mothers. In other words, the attitude was that women should center their lives around their families.
Eventually, this role changed. Many women in the 1960s, of course, became unhappy with this role and pushed for more freedom and equality. However, it is hard to connect this movement to World War II. Instead, I would say that World War II had no impact on attitudes towards women and family.