I was serious I didn't. Are you questioning my seriousitisness? College is free in the UK, University is not. There are all sorts of reasons people don't pass, having to work because you can't afford to go to college is a good reason, I couldn't afford to live and go to college, I had to drop out to find work. Illness, mental and physical. Accidentally choosing a subject to which you later realize you are unsuited. I don't think if you asked your average University student why they dropped out that not being serious is going to be the reason why 100% of students dropped out.
It's a good idea in principal, I just don't see the reason for making it conditional. I doubt the drop out rate for scholarships is particularly high anyway.