And to all those who question if 16 year olds have the wisdom to vote, I strongly suggest that you attend an election hustings meeting. Where you are highly likely to find an audience of 90-95% OAP's spouting all sorts of misinformed, pig ignorant nonsense that would get you flunked in every school subject.

The main issue, as always will be how to engage with young people to get them to vote. But they definitely have the wisdom to choose at the ballot box.

It's applied only for elections to the Scottish Parliament and local authorities. It began with the 2014 referendum.

Scotland has also varied the franchise, some of which changes are also under consideration in the forthcoming UK bill. One of the more significant is that people who are permanently legally resident can vote even if they don't have citizenship. I haven't read enough to know whether that's something the UK government are considering, but I could foresee lots of rabble-rousing from Farage et al. if so.

Other changes proposed include measures to encourage voters to participate.

In Scotland, I think the changes have only had positive effects. It's been heartening to see how engaged and informed some young people have been, with support from the school curriculum. One aim was to increase political engagement among younger people - initial signs are promising, but it's too early to tell (even after a decade!) whether it's having lasting effects.

The rest of the article linked in the OP points out that including 16-17-year-olds would only add a small percentage to the electorate.