Most students average 55 to 60 to complete the course. Then there's all the other costs on top. Test fee, radio practical, written exams (soon to be online and more expensive), medical, licence application fee, books, landing fees etc. Around London area fields you're more likely to pay approx £200 per hour. The most important thing is picking the right club or school, not going for the lowest price quote. It doesn't even take the back of an envelope to reach the realistic estimate of £10k to £15k to gain a PPL today.
What Dave said may have been the case with a minority of airlines many years ago. In more recent times, tens of thousands of modular students have managed to get jet jobs. (2020 not withstanding) It's all about the individual, not how they got to the interview. The current Red One got his PPL before joining the RAF.............