DH and I have DTSs aged 3 and we also have DSD (DH's DD) who is 9. DSD lives with us half the time.
We are in the very fortunate position that we can afford to pay for all the DCs to go to private school. At the moment DSD goes to a state primary near her mum's house (about 30 mins away from where we live) but when she goes to secondary school, we want to send her to the private school near us, as we will also do the same for our boys when they start school.
The problem is DSD's mum doesn't want her to go. We've said we'll cover the fees and she doesn't have to contribute anything, but she's making all sorts of 'not sure' and 'I'm not keen' noises, but hasn't really articulated why, or given a sold reason why not. I know some people are vehemently against private schools (I don't really want to start a debate long those lines!) but if she has any strong moral or political objection, she hasn't said so. The school is in between both our houses, so distance isn't an issue. We can all drive, have cars, etc.
I'm not sure how to move the discussion forward. We want DSD to have the same opportunities as the twins. And it doesn't seem fair to just send the boys private and not DSD when we can afford it.