Who is making the money ?
The airlines are in the business of selling seats and have over the last few years taken this policy to the point at which they sell all the sell on the aircraft except the captains.
Cabin crew have to pay for their training and so do FO's so showing a profit for both the airline and training provider.
Some of these people have got the trainee pilot fully line trained and then put them on a zero hours contract giving them very little post line training flying. This has resulted in people being unable to pay the training debt and having to declare personal bankruptcy.
All the training with most of these programs will come for your taxed income, one company ( the sadly long gone XL airways) did cook the contract so that the new pilots were kept on a lower pay grade until the debt was repaid, the balance of the pay being used to pay the training debt as the trainee pilots never received the money in was not subject to income tax so saving the trainee pilots 30% of their training costs.
The RAF want officers first and pilots second so you need to show that you want to be an RAF officer first and a pilot ( a very close) second, you can also end up in some very unpleasant places, but on the up side the pay is OK and the training is of the very first order.
You can try the self financed modular route, this is the cheapest civil way to get a pilot job but you have to fight total rubbish that is spouted by those offering integrated training about the quality of your training ( and by inference you!) that they use to sell their programs to the airlines.
Good luck with your quest but what ever you choose go in with your eyes wide open.