I've been following this thread with interest and usually go by the rule that if you don't have anything nice to say, don't say anything at all.
In this case, no. I'm appalled by how many posters aren't willing to help out their children at one of the times they need them most. The children that they decided to produce, and who one would assume are the beings they love most in the world.
I agree with the poster who said that struggling financially through university isn't a profound life lesson. Even if you top the loan up to the grand total of 8k, it's not like they'll be living the life of luxury, even if they work every spare hour they can. In fact, withholding support runs the risk that as soon as they start work and can qualify for credit, they might go wild (I did!). That 'life lesson' could go either way.
I totally admit that I'm a dissenter here, particularly because I think that if you decide to have children you should be willing and plan to support them financially well into adulthood - uni, deposits, weddings etc. You haven't done them a favour by producing them, because they'd be none the wiser if they didn't exist. You've done yourself a favour by having them.
And to those that don't value higher education. Yes, there are more 'professional' apprenticeships available these days, but there is so much competition for them, relying on consistent high grades and aptitude. What of the 'normal' young adults, for whom a good degree will set them up to reach the base bar of 'undergraduate degree required' for even some of the most basic jobs.