Your still skirting round the fact that all the jet jobs apart from Ryanair which takes modular as well are sown up by cadetships or the wings program.
And if the self financed untagged weren't paying there wouldn't be enough job to keep the current situation. They need the fodder to keep the system going so that the cadetships can continue.
I more than likely have come into contact with just as many parents as yours self may be even more as we tended to get a lot with the young'un doing trial lessons. And post qualification we used to get them to put there SEP ratings on post finishing.
I have even had parents beg to pay TR's and induction training and the kid work for free for 500 hours just so they can get some multi crew time.
Yes you guys get to work with the lucky ones. The rest of us get to see what falls out the bottom that supports the cadet schemes.