I have nothing against people wishing to join the airlines per se.
But having to pay back the costs of CPL and FI Rating is an enormous burden - and of course they'd be off to anyone offering them an airline post as soon as possible. Because of debt!
Whereas being able to hold some day job whilst building pre-entry hours for the PPL/FI course would be more affordable. Then recover the cost of the course by working as a PPL/FI. Once that's paid for, save for the CPL course - or take out a loan. Then no need to build hours after the CPL course, so off to an airline with all that CPL knowledge fresh in the mind....