

Its easier because your costs are forward rather than in arears. You can’t move before you sell the house because then you will have to pay on it while your trying to figure out expenses in a new place. You need to sell it for more than you owe and you will then need to find temporary housing where you will not have any costs if you need to leave at any particular time which tends to be more expensive. You will need to downsize to a backpacker level as part of this. Not just you but your family. Then you will be applying to try to get somewhere else which may or may not happen. You can start that before but then you might just have to abandon everything. If one has nothing to lose the process is easier. Similarly if you want to have a similar lifestyle in the new country you will have to find an equivalent and likely harder to find job in the new country.
Thats not people giving up comfort, that is them losing it. Nobody will rebel due to self sacrifice. Many act to rebel from loss of things that don’t directly cause discomfort but they have the cognitive ability to see the long term consequences that will come of it.