I'm astounded that so many people think that making the decision that you want children, so don't delay starting a family. Not wanting any particular career path, so are happy just working in a stress free "job", just as long as you can support yourself and have a good work/life balance, as being "unsuccessful".
I'm "Up North", so I appreciate that we need less money to live well, but if you don't want to do a science degree/work abroad/in teaching (my idea of hell)/Have children in your 40's (again my idea of hell, I'm 47), then you wouldn't judge that life as being successful.
Do you all making those statements think you really know what's going on behind the scene, when describing "fabulous lives" as opposed to "mundane", that's completely subjective.
I speak as someone whose DH travelled for work, I prefered my time as a SAM.
I've just given up my career as a SW, to go back to a SC "job", it's fantastic to leave work, in work and do absolutely fixed hours. I've made that descing so I can be a hands on Grandmother and a Carer to my Mum.
I value my family life/personal relationships and hobbies, as long as I can save for holidays, events, I'm happy.
Those having children younger and working "jobs", just have a different value system.
As for using the expression "calving", or calling someone a tart because they had a baby young/wore make up, you are very lacking as a person and in your education/information levels an dv have nothing to feel smug about.