MrsAbcdef, whilst having your own DCs at the school where you teach can be wonderful logisically, it can be a nightmare professionally. I teach in a small indy which has a large age range and a decent staff discount, and many of the staff send their own DCs there. However, we all feel that the pastoral care they receive is inferior to the 'proper', full-fee paying parents, whose complaints and issues are dealt with more diligently by the management.
I had an especially horrible (and utterly mishandled) incident a few years ago, when the head burst into my classroom on several occasions and demanded to speak to me about my DD. Eventually, I took time off with stress, and when I returned I explicitly stated that if he needed to speak to me as a parent then he should make an appointment in the same way as he would for any other parent. He struggled with this concept
until I pointed out that he wouldn't get into his car, drive to a parent's place of work, and burst in demanding to see them, so he couldn't do that to me, either.
My DD hasn't got long to go at the school now, and I wish I'd thought more carefully about the whole teacher / parent trickiness before I sent her there. If you have a DH / DP to take on the 'parent' role it will be easier, but my XH is an @rsehole who refused to help in any way.