Things to teach our dc from this thread:
Work your socks off when you are young, save every penny and get the best pension you can afford - you won't always feel like a spring chicken, one day your age will catch up with you, and with all the will in the world that over time/new job role will be a step too far.
Dance and have fun and make the most of your life - one day you won't be able to. Dancing on tables will result in a hip replacement at 50!
Start early having dc if you are in position to do so, your older self will thank you for it.
Don't have any children at all if you don't want to, it is a perfectly viable and enjoyable option.
Never rely on a man for money or security, plan your future concisely, and don't for God's sake marry someone lazy/no prospects, he will drain the life out of you quicker than any job!
Get a job that you love with a passion, that way you will never do a day's work.
One day you will get tired quicker than you think, life will become harder suddenly, then you can slow down and take the scenic route as God intended
There will be those that say never me, I am going to be young forever - ignore them, it happens to the most spritely of us trust me.
Don't you just wish someone had told you all of this.....