Bali is wonderful for addled old deviants like me and Davita but not the place for a young family - there are masses of hidden costs that you haven't even thought about and I promise you after maximally one year you will be headed back to Oz with huge losses and a 24 year lease on a villa that you can't get rid of.
If you, like most, think the previous is Bull Taco then do yourselves at least the favor of first getting a long term rental here and see if you can make it work - don't burn any bridges to Oz that you will need. As the bishop said to the actress "suck it first and see".
Seriously.....I have raised 2 kids in Asia for 12 years now...not much difference to bali with all its idiosyncrasies....there is shit happening in every country, including Oz.
When I left oz all I read about was violence in schools, drugs in schools, gangs, disrespect and poor education....so go figure.
One evening, I had the pleasure of a group of young scholars throw a brick through my car rear window...all because I got a little antsy about these kids, several of them, climbing in through my nephews rear bedroom window at midnight to camp over for the evening.
My kids speak 2 languages fluently, will speak a 3rd also in a few years time. They will have access to Universities in Oz, UK, Thailand and possibly several other countries if they wish....schooling did sweet FA for me, I remember virtually bugger all of it...yet I retired at 39yo.
I get that you are the resident grumpy old bastard, I recognise that because i can be too...but leave parents to make the decisions for the kids to them....we left a society of people telling us what to do, trying to wrap us and them up, trying to protect us with rules to protect the rules from the rules and so on... we as expats, have a little bit more ooomph and character than the lazy arse shits that stay in one spot all their life and do as they are told day in day out.....so some credit please.