Haven't we grown up in some ways..

[LeftishBrit]

2. Although you'd think that the elderly would be particularly concerned about the NHS, pensions, etc.

However, I think that you're right that there's a certain nostalgia-dominated block that dominates politics: Make Britain Great Again. It includes not just OAPs but many people in their 50s and early 60s, who haven't retired yet (I am in that sort of age group myself, but do not personally look back sentimentally to the 70s). Some of them definitely used the referendum as a time machine to get back to the glorious days of their youth. Many people indeed seem nostalgic for a time before they were born, talking about When We Won the War: no, unless they're actually over 90, they didn't; and people who do remember the war usually are less nostalgic about it.

I agree that one problem is that younger people are less likely than older people to get to the polls, skewing the voting electorate.