I will never understand why people turn down a) pensions and b) the defined benefit, career average LGPS, which is one of the best ones out there.
It is a career average, defined benefit (which means you will get the £ it says when the time comes, adjusted for inflation etc etc).
You have employers contribution of over 20% normally - would you turn down that pay rise?
Let me walk you through my own example. I have worked for local authority for over 4 years now. I have paid £27k into the pension fund (I'm quite senior, my contributions are 9.9% salary). This has given me a guaranteed (note the word, guaranteed) income of almost £9k p.a. which will increase in line with inflation etc etc. To get the same income of £9k through annuity purchase, I would have needed to save up £250/ £300k in a defined contribution scheme, and even if I had saved up this amount, annuity rates may have plummeted and may only purchase me £2.5k p.a. per £100k.
Please take out the pension, even if you aren't earning that much, especially if it's LGPS - can you really afford to turn down 20% free money?!
I have other DC pension funds (in one pot), which will cover me through the early retirement I hope to be able to take, but it's going to be that LGPS pension I rely on from 67 to keep me in books and the cats in catfood...