fyi, there is a term mortality protection gap known about in insurance at the moment, in which limited duration mortality-based benefits cost significantly less than the utility customers derive from them. There is a report somewhere, but I don't know if it is confidential. http://www.swissre.com/reinsurance/insurers/life_health/Swis... is related.
The report says that people require life insurance, because the financial burden on their family after death is too high for them to afford.
It also says that purchasing life insurance is a cheaper alternative than building the required savings to cover the family's financial burden after losing the main breadwinner.