I think many students are limited by where they can afford to apply to.
Some students don't get the opportunity to go to university at all for that very reason.
Your son needs to decide what is more important to him, his sports or university.
Likewise his course choice.
What career path does he envisage?
You are a family of limited means from what you write, so it is not unreasonable for your husband to be realistic as to what help can be offered.
Reading History and focusing on his sports, and not even contributing to his upkeep with a part time job, would not endear him to a lot of employers IMO.
I know of a couple of very senior HR people that cull CV's on that basis and would say they are not alone in that, it being a common stratagem.
For many people looking at CV's that are all largely newly graduated, a prospective employee that has held down part time work throughout university shows that they have had one foot in the real world by funding themselves IMO.
Flipping burgers may not impress you, but sticking at a pressurised job with unsociable hours in a hot uncomfortable environment takes guts and commitment IMO.
Similarly low paid retail work in a client facing role tests a person and helps them learn skills that they may not have.
My privately educated children have part time jobs in university and they have learned a lot from them.
Do they enjoy working part time and juggling it with their studies?
Absolutely not.
Have they learnt time management, the value of the money they earn, how hard you have to work in some jobs for a basic wage? Yes they have.
Do they think dealing with the public is a PITA....absolutely.
Working in a part time job matures a young person and increases their confidence by virture of the financial independence it brings.
All of my children's friends from school, at University with them, have part time jobs.