I also think it's easy to think of financial services as being a bunch of rich folk, but it's not - how many people does it employ in entry level admin/call centre type roles.
Unfortunately at the moment, though, most people will be in these call centre roles for years, and never advance, even if they want to. It's difficult to get even an entry-level job nowadays.
A friend of mine is fully-qualified in a specialist area of applied science, and works in a call centre with no sign of advancement and no jobs in his area are available. He was refused for numerous call centre jobs before he got that one, too.
When I was looking for a job after graduating, the first one I applied to was my part-time student job as luckily they were hiring for my exact role again, and I wanted something so I could have an income. I got a letter saying my skills didn't match what they were looking for.
It wasn't due to previous behaviour in the role either, I was never off sick and my appraisals were the best they could be.
That's one of the reasons independence is appealing to me, too. The job situation in the UK is rubbish for graduates.