The issue in Spain IMO wouldn't be the kids or school (depending on the age of the kids - over 10 and you might encounter problems with the language) The big question isis it hard to emigrate to Spain and put your children in school there. Is the school free? I hold a British passport but my children are on an Australain passport.
yes, state school is essentially free - you do have to pay for books & other supplies - I reckon on at around 500€ per child per school yearlots of reasons, family, the adventure I would need to work I am a teacher, I would get my children British passports but even with those is schooling free? In a bit of a quandary!