I'd like to say yes because when I was 16 I and a few of my friends were quite mature and very into politics but of course not every 16 years old is like that. Personally, I think a mini political test would be a great way to allow the mature 16-year-olds allowed to vote as if they pass, they can vote at 16 but if you fail then you'd have to wait until you are 18. Someone might say this is unfair but the test will help separate the serious 16-year-olds who are into politics and the ones who don't care.
It's just an idea by the way. Feel free to agree or disagree with me.