Under current laws 16 year olds can;
give full medical consent,
leave school to enter employment,
pay income tax,
obtain tax credit and welfare,
have sexual relations,
get married or enter a civil partnership,
join the armed forces.
16 and 17 year olds cannot vote in the UK. Considering the range of things they are deemed responsible enough for, it is nonsensical to deny them the vote. In the EU referendum, there was much frustration surrounding this issue as most 16 and 17 year olds felt their futures had been decided for them by the older generations. The forward thinking views adopted by the younger generations combined with the experience from the older generations would amount to a fitting, fair choice of leadership in general elections and in referendums.