I remember the day that I realized adults could be wrong: it was while reading a book on pubescence (I had questions, and was a nerd). What the book said directly contradicted what I had experienced (book said no such thing as 'blue balls' and after having experienced them, I had to disagree). It's been a long process since then of learning to discern what is opinion vs what is fact. It's not surprising that Justices should judge based upon their own personal experiences. Things are sometimes less 1/0 than we would like them to be. This does become a problem when we are talking about such things as rights - if they are open to interpretation, then they can be interpreted away, and are no longer rights, but privileges.
Your parents seem pragmatic, and it's great that they've passed it along to you. My wife and I have tried to instill in our children too that it's not what you own, but what owns you.
"In a new study of 50,000 adults in 25 countries, daughters of working mothers completed more years of education, were more likely to be employed and in supervisory roles and earned higher incomes" - TLDR, children will imitate what you do, not what you tell them to do. This is good for certain values of good (depending on how you define a 'good' adult).
The title of the article (Mounting Evidence of Advantages for Children of Working Mothers) seems to define having a career as an advantage, but is it really?
And don't forget the death of women during childbirth. That would leave a father/child pair - I'm sure the fathers in that instance would not be voluntarily celibate afterwards.