ITCZ, the trouble is mate, that the relationship we call the law of supply and demand does explain certain human behaviours, including the supply of pilots quite well.
Furthermore, whenever we try and tinker with said law, we stuff it up and create opportunities for bastardry of various kinds.
If we decide to ration the supply of pilots, then the price paid to pilots (wages) will eventually rise, but that increases ticket prices and provides opportunities for corruption in both the training and allocation of (scarce) pilots.
If we decide to train pilots for free, then pilots wages will fall.
I suggest that the smartest thing to do is to try and explain to young wannabees exactly what they can expect in terms of wages, lifestyle and career opportuniites, as well as the RISK they are taking, before they embark on a CPL. Its called a price signal in the marketplace.
Translation: Now that Australians understand that the starting salary is $21,000, maybe a few will decide not to proceed with a CPL.