According to most of ATOT you are a loser if you are not out of the house by 16. But reality is, cost of living is so expensive, and entry level jobs don't pay enough, so it is not out of the ordinary to stay with parents for a while so you save up money to live on your own and work your way up the pay scales at work. That's what I did, I moved out at around 23. Ask your parents to see all their bills as it will give you an idea of how much money you need to be making so you are ready to be on your own. Even if you save money there is no sense in moving out if your income is less than all the bills. For fun you can even break it down per day. I did it once and all my bills come up to about $82/day (been a while since I updated that spreadsheet though). So a job that makes less than that is not enough.
Heck I don't see anything wrong with someone staying with parents even up to or in their 30's, as long as they are not freeloaders and help around the house, and actually are working on getting out. Maybe they're waiting to get a better job, or saving up for a house downpayment etc. Financial life now is harder than it was before.