There's no use making a but if it were the other way around... arugment here. In insurance you're allowed to make crude distinctions. This is how insurance works. Are insurance companies just to pretend risk categories and acturial science don't exist anymore?
Think how shit an extra £400-1000 a year is gonna be for single parents (or the 90% of them headed by a woman).
The bottom line is the consumer suffers more here (esp re men's annuities).
Unless I'm wrong. Discuss.