A few things to consider also-
Where you live now, 95% chance your wife works, or is able to for a decent wage if she has to tomorrow.
You have a family support network where the kids are easily taken care of when you/ missus is working.
School costs-, yes, there is a subsidy here, but only from a certain age at certain schools onwards, so when you don't qualify, (which no one does), you're going to be coughing up a lot.
Repeat from above posts, in the interview, "You'll be upgrading in 3 years, for sure (4 years later, no sign of it), and "DEC's!!!! No way. Trust us!!"
So 4 years later, here I am, still paying through the nose for unsupported 3rd child education, wife working, and the saddest part, for me,
I have a second job.