Hmmm!Having aussie kids,and brought them up in Oz until they were nearly teens,and then relocated to the UK a few years ago,I think I have a balanced viewpoint of restrictions.Going on holiday from the UK to somewhere hot for 2 weeks is a different story,than living somewhere hot.We lived in Sth Aust.I can say categorically that we were just as restricted there as what you might be in the UK weather wise.Days stuck inside during winter with the wood burner on 24/7 to being stuck inside during summer,too hot to do anything really,curtains and blinds drawn,just like winter.Might be different in Qld though.Even on milder days of 20c+I would be telling the girls to stay in the shade,sunblock on etc.I have two siblings both had skin cancer and were and are not sun worshippers.One's had SC twice,the other 5 times!This is just them heading out to hang washing outside,going from the house to the car etc not sunbathing,so you need to be very careful.
Our lives did not change when we moved to the UK being outside wise.We weren't beachy type people in Oz and neither in the UK so I guess it depends what type of family you are.
I think I would if I were you,rent your house out if you decide to go.Also factor in the working hours.Finishing at 5pm?Is that a dead cert or will you be expected to work later if appts are running late?Getting home right now when its your kids bedtime is only a temp thing,obviously the older they get,the later they'll be staying up.