Let people vote and stand at eighteen
At last one of the major parties has woken up to what I've been saying for ages. Ignore the question of lowering the voting age to 16, but standardise the age at which you can stand for election and the age at which you can vote.
I think it is scandalous that you can vote at 18 but you cannot actually stand to change things until you're 21. If you are old enough to make important decisions about voting yourself then surely you are old enough to put yourself to the electorate. People may not want young representatives: but surely in a purported democracy that should be for the electorate to decide by not voting for them. At last the Tories want to do something about it. Hurrah!