I have discovered that the DCs need just as much, if not more, support as they get older
As a single parent, I had no option but to work for all of my DC's childhood. Youngest was under a year when I found myself with no income, debts, bills and a house in negative equity.
I found the statement above to be so true. Finding childcare pre school age was easy. Primary school was more difficult, and the stress of working full time plus, commuting and having 10 minutes notice to provide an egg, cardboard and whatever for that day's school activity was a bit overwhelmng. Not being able to attend nativity plays and carol concerts regularly is heart breaking.
However, the hardest bit for me was teenage years. Thankfully by that time I had got to a level where it was possible to work more flexibly but I do think it would have been better to have more energy to focus on the DCs.
However, having made a very considered decision with XH that I should give up my higher paying job to be a SAHM for him to leave us two years later, I would never, ever put myself in such a vulnerable position again.