I'm really hoping they have plenty of savings to fall back on when things start going wrong so they have time to find new ways of making money. Obviously this would be much harder for the kids as they have no qualifications so finding a job would be more difficult than someone else.
However, they seem to spend a lot of money with the constantly moving around, flights here there and everywhere, new wardrobes and toy collections every time they move, pointless challenges, etc. So who really know how much they may have put aside, if any!