Natalija is actually quite rational and has even figured out what her break-even salary would have to be before she'd be as well off working as she is receiving benefits. The irrational party in this arrangement is the British government, but then perhaps it is trying to encourage European women to have babies so that the country is not overrun by Muslims in 20 years. On second thought, since Muslims receive the same benefits it's more likely that the Brits welfare policy is accelerating the Muslim birthrate, which is worse than irrational. It's insane!