The terms of the referendum agreed today state that "it will be for the Scottish Parliament to approve" the move to extend the vote to 16- and 17-year-olds.
The ruling SNP party favours a wider franchise because independence is more popular among the young.
ITV News' Scotland Correspondent Debi Edward spoke to some 14-year-olds about the prospect of being able to vote:
The Prime Minister and Scotland's First Minister have signed a deal to grant Scotland the power to hold a referendum on independence.
Eurocrats in Brussels have long dreamed of a "Europe of the Regions" and it may be about to happen, but not quite in the form they imagined.