Is NOBODY wrong in the post ? POST : Apologies for the title, I don't know the best way to summarize this.

My son is turning 18, and has been accepted into a university, and I'm very proud of him. He has received a few scholarships and grants, and has applied for loans as well. The issue is the loans, he's upset that he has to apply for them at all. 

For some background, my husband and I have been separated for a few years now, although he still pays child support. I have sole custody of both my daughter (aged 14) and my son. For the past 3 years, my daughter has been attending a private school that costs about $10k a year. My son has never been happy about this - he complains that it is waste of money and that it's not fair, but when he graduated middle school, we did apply to a private high school, which he was accepted to. He refused to go because he said it was a waste of money and that he didn't want to hang out with "rich kids", but I think he just didn't want to be separated from his friends, so in my opinion it is fair, as he had the option to do the same as his sister. 

Finances have never been a huge problem for us, but I cannot afford to both send my daughter to private school and pay for the bulk of my son's tuition. He worked a job over the summer and has received some scholarships, so I think it's fine to take out student loans, since he can keep getting scholarships. I will provide for money if he really needs it but I think this is also a good time for him to learn some financial independence. 

My son is upset, and although I understand where he is coming from, I do not think it is unfair how I have treated my two children.