Well, it is damned far and damned expensive.
Several year back my daughter was engaged to an Aussie and the plan was for them to live in OZ for several months and then come back to the US and get married.
My wife insisted that we would have to visit them during their time in Australia.
OK by me I said , but you had better be prepared to spend about $30,000 on the visit because I wasn't flying to Australia in Coach and Business Class tickets cost about $11,000 per. God knows what a First Class ticket costs.
Door to door from Dallas the trip to Sydney is about 21 hours. I would throw a clot spending 17 hours on a plane, jammed into the cattle car.
The engagement fell apart and so we didn't make the trip, but you have to be rich or somewhat rich and quite fit to travel from the US to Oz with regularity.
It's the other side of the world.
So, no surprise that people who want to go, never go.