"Banking on the move is as much a reality for silver surfers as it is for students," Browne added.
The BBA figures were compiled from Britain's biggest retail banks, including Barclays, HSBC, Lloyds Bank, NatWest, RBS and Santander.
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Older people represent an opportunity for the finance sector, with the number of over-sixties rising across the world both in real terms and as a proportion of the global population.
According to the World Health Organization, 2 billion people, or 22 percent of the global population, will be aged 60 or over by 2050, up from 11 percent in 2000. Furthermore, 400 million people across the world will be aged 80 or over by 2050.
At present, the number of "silver surfers" using Internet banking is comparatively low, however. According to the U.K.'s official statistics body, 23 percent of Britons over-65 use Internet banking, lower than for any other age group.
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