Went to a baby shower last week. The mum to be is an old school friend and there were 8 others from our school there.
We all went to a well known public school, we all have degrees (3 from the bunch went to Oxbridge), and yet 5 of us are stay at home mums, 2 of the women that work don't have dc. So only 1 woman with DC has continued to work.
Most of us had careers before dc, but quit work after marriage and having children.
Interestingly, although a couple of us send our DC to private school absolutely no one has any plans to send their DC away to board ever.