John Robertson MP
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PMQs: Cameron and Robertson on changing voting age

David Cameron said 18 was the "right age" for voting in the UK, but would back a vote on the issue in the Commons.

The prime minister said he was happy for devolved powers in Scotland and Wales over voting ages in their nations.

He was responding to Labour MP John Robertson who called for UK-wide votes for 16 and 17-year-olds after the engagement shown in the Scottish independence referendum.

BBC coverage of PMQs in text and video