@FSWer what you have to do to support yourself as a skater - or if you're a parent who's supporting a skater - really depends on the type of skating the skater is doing. It can also depend on how much you're willing to pay.
It isn't as expensive to support a skater in a learn-to-skate program as it is to support a skater who is competing nationally or internationally. But even a learn-to-skate program can be expensive if the skater or their parents need to buy things like warm clothes to wear to the rink, a helmet, or skates.
For skaters that compete, there are ways for them or their parents to save money. Like buying a used skating outfit instead of having one custom-made by a tailor. Or by not doing as much off-ice training. But even if skaters can save money on things like that, there are still very expensive things that they need to compete, like coaching, ice time, music editing, travel, and competition entry fees.
Some parents or skaters make a budget and decide the highest amount of money that they're willing to pay for skating. And then they decide what they're going to pay for within that amount. Other parents or skaters spend whatever they think they have to spend, and look for ways to bring in more money - like taking second or third jobs, or cutting back on what they spend on other things.