Well, I'm not from UK, I come from Croatia. So,although beautiful and safe and yada yada,it actually doesn't provide anything but that. For example I've started looking for a job a 1.5 year ago and still nothing, I'm stuck here with my old one, even though I am an experienced professional, there is no demand on the market,no job ads. There were some,pretty obviously set for a specific person (relative,friend,friend of a friend etc.) which is very common here. and you know what -people are actually saying that I should be grateful for getting a salary,like I didn't earn it or what?!
I don't know if you understand,but people here are happy not for having a great job they enjoy,they are happy if someone is paying for their work as there are many of those who work for months and don't receive their money,they are like volunteers in their companies but not willingly. So we are actually talking about basic requirements for having a normal life that can be fulfilled only if you're lucky...
Yes,I'm kind of embarrassed for living in almost a third world country (although we're in EU). So the reasons are pretty much clear,I want to provide something more than that to my kids.
But reading about your experiences makes me feel a bit anxious to be honest however I would rather like to see the whole picture before we make a big step. Therefore,feel free to say what has changed,why you are now sorry for moving to oz.