Earlier quoted context omitted.
Unlikely. If you look at the age breakdown of the vote, millenials and other assorted youngsters voted overwhelmingly for "Remain", while the older cohort voted for "Leave".
> If you look at the age breakdown of the vote That's not the breakdown of the vote but of exit polls and other opt-in polling such as YouGov surveys. Both of which are biased towards those (1) likely to contribute and (2) not concerned about sharing how they voted. The actual demographic composition of the vote is unknown, it could be determined ( all UK ballot papers are linked to their voter ) but that would be un…
No they're not. The ballot papers themselves are indistinguishable, and they are rejected during counting if people include any identifying marks.