Better weather is subjective - I'd take the UK over most countries in the world tbqfh when it comes to weather. We love to moan about it but it's actually the best in the world most of the time. Not too hot, not too cold, not too wet, not too windy, no snow.
Climate change is going to make parts of Australia even more uninhabitable than they already are.
British weather is terrible imo.
Hard to plan as its totally random. Far too much time overcast or just dreary.
Far too wet for my liking.
I love hot, but happy with dry and cold. Yet UK sits in between mostly just damp.