The consensus amongst friends/family/media seems to be that if you're a sahm, you go back to work once the children are in secondary and are more independent.
I think this age is when they need you the most - not so much for practical support (although obviously that too) but for emotional guidance.
Dd has come home with friendship issues and the stakes are much higher now - her friends have gone late to classes and lied about the reason so they won't get into trouble, another friend's parents have split up acrimoniously, some start smoking etc.
I feel more needed now to talk about issues that could affect her. Also supporting homework, I've been shocked at some of the things she's being expected to do in year 7. I would have done these at a much later stage iirc!
What do you think?