>> You can't possibly advocate letting non UK citizens decide for UK matters.

I don't see why not.

I have lived in UK for 8 years, and pay my taxes here. I'm a productive member of the society, I consider Theresa May as much my prime minister as any British person would. The result of the referendum affects me hugely, and yet I couldn't vote because my passport does not say "Great Britain" on it.

And like the other commenter has said - there was plenty of non-British citizens who were allowed to vote.

> You can't possibly advocate letting non UK citizens decide for UK matters.

The UK has a long history of letting non UK commonwealth citizens vote in things like... The Brexit referendum!

In fact non UK citizens do vote. Any citizeon of Ireland or of a Commonwealth nation, resident in the UK, is entitled to vote in every UK general election.

16 and 17 year olds do not vote in UK general elections, but I think that a referendum about the UK leaving the EU is more comparable to the referendum about Scotland leaving the UK.

The effects of such a change can last for generations and be hard to reverse, and potentially affect younger people for longer than older people. For those reasons, I think it is better to err on the side of greater franchise than less.