Sorry - I don't agree. If you know that you have forseen expenditure, such as support for a child's further education costs looming in the future, there is no reason why creditors would not accept this, so long as the argument for was properly presented and justified. I have done this on many occasions in the past, and to be frank most creditors are supportive of further education costs.
You will need to make your son aware of your situation, however, and encourage him to try and fund some of the cost himself by taking a part-time job or going to a university a little closer to home to ensure that costs are maintained to a minimum.
Regards, Melanie Giles, Insolvency Practitioner