The thing to be said about pensions schemes is the longer the money is in the scheme the more itll be worth, so start early. Youll be thinking about this in your thirties and by then you could have had an extra 10 years of investment
If you move jobs often you will be usually be asked to join a different scheme; this may mean you end up with many different schemes (even if most of them have no more money going into them). This gives you some protection against the risk of a particular scheme being robbed or devalued.
Its one of the most tax-efficient ways of saving (except that your pension once drawn is taxable!
) To this end, additional voluntary contributions may be worth your while if you can afford it.