I understand the pov's on here even if I don't agree with all of them them but just wanted to point out that a degree is simply a ticket (in career terms anyway- plenty more on a personal level I know) and that even a crap degree from arsend university can be turned into a good and useful ticket with the addition of extras, eg an MA, excellent work experience, pratical qualifications etc- meaning that those who simply cannot move away to study (and it does happen, In The Real World) can still thrive, albeit via a different route.
But thinking about your degree and where you want it to take you is incredibly useful and always to be recommended: I couldn't access the RG university I had been offered for practical reasons but don't for a minute delude myself that my degree holds the same worth to an employer as if I did. So I apply a little nouse and add value onto it. Sensible if slightly circuitous.
I would also say that yes there are many jobs out there for which you do not need a degree: but if everyone else applying has one it's worth thinking about it anyway and doing the sums to see if it adds up.
Which isn't to say people should take a degree- just that in a market where everyone does have one (or at least it seems so) it may well be very wise to at least consider it, or work out how you can demonstrably acquire a similarly competitive CV).
Oh and also aresend university may well be terrible for law and economics but every now and again they offer specific industry related courses that are the best of what is out there in a field (at mine it was design, at DH's very specific areas of technology): research, research, research.
And if you are not sure, the right to apply doesn't end at 18. Go away, work, and come back. That's fine too.