OATS as an example
I can only speak as a Graduate of OATS APP from over 2 years ago.
Of the ten or so on my course a couple dropped out of the course due to either outside pressures (kids) or lack of study leading to failing exams or tests.
Of those nine who finished the course three of them ended up paying for their own type rating to secure a job.
The rest got jobs with airlines willing to pay the type rating and bond them. Two of us got turoprop not jet jobs and in my case that was well over a year after Graduating (probably because I'm an old fart!)
All of us got a flying job. In most cases this was due to OATS referring us, that referral is really worth its weight in gold - in fact I doubt I would have got a job without it despite grades above 85% and passes in everything first time/series due to my age (36 on Graduating)
I do know of a couple of people from the course before us who still haven't got jobs, although I gather one of those has now decided to pursue music as a career.
Hope this is helpful.
Desk-pilot