We have two children, both of them are medics. This means their uni courses are long (6 years). Neither of them had much time to work during their later years.
Our son, started uni in Liverpool in 2012, and used the full pot of money (£20k) which we had set aside to give to him to help with living costs.
Our daughter started uni in 2017 in Bristol. It is an expensive city to rent in. She has finished the £20k pot we set aside. She says she can't afford her last year of uni unless we give her more money. This is because Bristol is a lot more expensive than Liverpool, and the cost of living is up almost 25% since her brother started.
We can afford to give her more, but dh refuses out of principal, that she chose how to spend the money. She had to go to Bristol, as that was her only offer.