Totally agree with Addicted - students often have totally unrealistic expectations of what university education is - a lot of it is teaching people how to lear and think and research the information they need. There aren't enough teaching hours in the day for lecturers to impart all of the information students needful degree courses, and even if there were, it is no good them just being able to regurgitate stuff parrot-fashion - they have to be able to reason and apply that information.
While the internet is a wonderful tool, it has made many students (of all ages) lazy - they "google" everything and often copy and paste what they find, but they aren't selective in their research and don't seem to realise that while there is a lot of excellent information online, there is a lot of rubbish, too,
When they have had parents doing their homework for them (and increasingly often they have paid for professional "essay writers" to fulfil some of their workload) it hits them hard.
Many also seem to think that as they are paying for their tuition, they shouldn't have to work for it - that they should be taught towards the exams and not be properly and thoroughly educated in their subject. Universities don't work like that. Anyone can learn a limited number of facts to get through an exam. It is only the ones who out the work in who will acquire the deep knowledge needed to apply it.
Some, too, are just not emotionally mature enough to undertake a university course at 18. A year or more "out" would serve them better.
It is very sad though - very sad indeed.