At 15 she was working part-time to help with expenses. You cut enough financial corners and it hinders their skating. I've incurred a lot of debts the last three years. Sure, it's a little scary because I've got a wife and two kids. My wife's commitment and sacrifice has been as big as mine.
Travel is the biggest expense.
There are training camps and I have to go to World Cup races in Europe twice a year. In some sports there is sponsorship money available, but it usually goes to athletes showing exceptional potential. That means you have to come up with your own money until you catch someone's eye. So, we frequently end up sending the best athletes who can afford to participate, rather than the best athletes. You may need one to support your training.