Just out of interest what would you need to study at uni to get into stock broking?
stock broking is so varied; and on the list i think it counts for city trader in investment banks rather than stockbrokers (that can just be sales work disguised). the list might even include banker into that bracket, seeing as i couldn't see it.
if you wanted to get in a decent trader role as a graduate (starting salary of 38k, bonus in 1st year looking at 20k) in a large investment bank a 2.1 and aab at a level is pretty much a prerequisite. furthermore you are disadvantaged if you don't attend target unis, usually the top ten. tough selection process also. has been know for lesser unis to be represented tho.
if you wanted a stockbroker role (which under a broker you would earn a small salary and commission) you could get in with a levels as a school leaver. these types are highly disguised hard sell jobs though.