Has the decline in tradition gone too far?

After chats with family, friends and colleagues about people we know having babies at our age (19/20) and being quite disapproving, it has caused me to wonder why this is so?
Twenty years ago it was the norm for women to have babies so young. In the 1950's/1960's society judged women who went out and got the career they wanted instead of embracing their maternal role. Nowadays it seems that we are judging women who choose to have families at a young age instead of a career. Surely all the hard work that the womens movement have done over the last half century was for women to have the choice, not for the situation to be completely reversed and for women to be expected to put a career first instead of motherhood.

Just a penny for your thoughts.