Many financial planners estimate that you will need retirementincome of about 75% to 100% of your pre-retirement income to maintain your pre-retirement standard of living .
This will give everyone who contributes to a private pension a much better idea about their likely retirementincome, as it will project the growth of both your state and personal pension contributions within one statement.
So, if all you care about in retirement is ensuring you have the most income for the rest of your life, there is nothing that beats having access to other (dead) people's money (instead of their kids).