you should"t go to Uni "because everybody else does"
but either because of a love of the subject, or ( and they are not mutually exclusive) to get qualifications in order to move into a profession.
My neighbour is a plumber who was an accountant and realised that his clients earned more than he did.He retrained as a plumber and runs his own business employing another couple of guys.
A mate studied Archaeology but there is limited need for trained graduates. He works in insurance.
another did Forensic Science because he watched to much CSI and now works behind the counter at Boots.
Only you can decide, but this is pretty much your only chance. You (on average) stand to make more money back over a lifetime than it will cost, despite the subject.
However, you could find that 3 years in a company gives you a head start