I don't want to put anybody off. Don't not do something because some guy on the Internet had a negative experience. I just think it's important that both sides get represented.
I went to college as a Mature student. Not too mature, I think I finished at 31. Finished with a very decent GPA, missed out on first class honours late on. Had tons of exam exemptions, more than any other 3rd level course in the country at the time.
I went on a few interviews for a trainee after college and found that the tone of the interview changed after I revealed my age. I get the impression that they want somebody that is in their early 20s, full of energy and will work every hour God sends. And to be fair, they are probably right.
I spent over 10k of my own money going to college, had hardly a penny to my name in these years for anything else bar fees, books and travel. Obviously it was the biggest waste of money I have or ever will spend but it was the time wasted that I'll never get back. I finished college over 4 Years ago and even haven't applied for any sort of financial job in about 2 years.
There are lots of positive story's, I'm sure. And good experience in another industry is huge.
Again, I'm just one person. But it's important to get all sides of it.