If he wants to fly in europe then he will need a JAA. He will not get this if he's trains outside of europe. In America it's the FAA and canada and a few other countries it's an IKEO. IF he trains in america ( florida has a great reputation ) then the conversion to the JAA is a nightmare.
There are talks about making it a much easier lik the ( IKEO to the FAA, just 2 exams, no extra flight rides ) process but at the moment it's a lot of money and a lot of extra study. From memory i think there are like 12 exams to take and around 10/15 hours of flight as well.
It is cheaper to go abroad but when you factor in the costs to convert the licence it's not worth it. Waterford would be his best bet.
Also you may have been told ( as a canadian friend of mine was when he was trying to convert from IKEO to JAA ) that airlines will sponsor you and help with these costs and you can do your flight rides with them........this is all totally false no matter what you are told. They will not even look at your sons application if he does not hold a JAA. They will except frozen licences cause he wont get his full licence untill he has x amount of hours ( i cant remember the exact figures )
Private lessons wont do alot of good to his application, you cant use those flight hours on your application. And there is no airline that is going to take him on direct training at the moment. The market is to bad.
For joanboot, it is normal to have bonds with airlines. It costs them a lot to train people and they dont want to spend the money training you and then for you to move to another company. 5 years is very long, usually it's around 2. But i would look into that a bit more, i have heard of this happening to others and they were able to get it all back because they were made redundant. This was a while ago so they could have changed things now. Your son didn't leave so in a way he's not breaking the contract they are. Worth a try anyway.