I may be wrong but if on UC state pension contributions are still paid? So the expectation that we need to pay into our state pensions for 38 years from wages is false?
If you don't then you get pension credit which comes with lots of extras like contributions to rent, dental care, council tax etc?
Most companies and government sector have an automatic private pension which are taken out of earnings. There is the option to opt out but after advice from elders it really is best to keep paying into it.
This figure does seem incredible, most if not all jobs do jave a pension scheme, NEST for zero hours.