There will always be people who never get a job, regardless of the industry. Some people just time it badly and give up, some people are able to get qualified but have no idea how to actually get an interview and some people were unemployable from the start. But that's not a reason not to go for it. That's why I recommend that if you need a job to pay for flight training, get an airline job. At least that way you're half way through the door. Its a long game but it's tried and trusted.