From my experience, I went to University got a good degree and a good job with prospects to train. But I was more focused on working on finding the right person, then my focus was saving for a house, then we got married. So rather than taking any training, I was more inclined to set up family foundations in this way. It wasn't even a conscious decision, I just wanted to get married to the person I loved, buy a house together and start living in it.
Baby no. 1 arrived at the age of 32, I took 9 months mat leave and returned to work part-time. Stayed part-time whilst he was a preschooler because we couldn't afford the childcare bill. Granted, DH could have stayed with him rather than me but honestly, I wasn't ready to return to work full-time, I didn't want to miss his little years.
It meant a lot to me on a deep level, seeing my baby boy grow and turning into a person before my eyes. It made work seem like the part of my life that wasn't as real somehow. Necessary, but not the most important job I had. Being a mum was a game-changer for me in this respect. Baby no.2 arrived at the age of 36, and I still work part-time now, two years after his birth. Again, it's because the childcare bill would almost outstrip my salary but also, DH got a promotion when Baby 2 was born so is on significantly more than me. I also feel the same way I did when I had the first baby - I don't want to put him into childcare x 5 days a week so I can work full-time.
I can only speak from my personal perspective but no-one ever lay on their death-bed wishing they'd had more time at work. I'm 38 now, I've most likely got another 38 years of working life ahead of me, God willing I live that long.
I take the view that I had to get real life sorted first - the personal stuff, the babies, the early years with me, doing all the little activities, the cuddles and the baby giggles. I don't want to die regretting that I missed those years with them. Work is work - it'll be there waiting for me when I'm ready.