Thank you for your responses all helpful. We have applied for our boys citizenship so hoping uni fees won't be an issue. I had also heard about the differences between education systems and I think ideally my son would complete his A levels first. However having completed all my education including graduate here & my husband in Aus looking at where we are now I'm not sure it really matters in the long term? We're moving for quality of life opportunity and family reasons. Living with COVID restrictions for over a year now has made us really evaluate life. My son wants to be a pilot so I'm thinking there may be more opportunities in Australia for that. we can get my visa sorted ASAP and get moving!