Why do you assume it's only pensioners who voted leave? Do you have their names and addresses? You seem to know an awful lot. The irony is, most of it is awful. I'm afraid, at 67 going on 50, I'll be around for a long time yet. My maternal grandmother was 105 when she died and my mother is 92 and still going strong. Younger people think pensioners are cynical, doddery old codgers who shouldn't be able to vote. The truth is we've been around longer and know how the world - especially politics - works. We've been through all the scaremongering - start a rumour about a shortage of this, that or the other and selfish/ignorant people will ensure it happens, much like the current scaremongering.
Until younger people accept that they haven't lived long enough to act so high and [Poor language removed] mighty maybe they ought not to be given a vote. Much like youth, the right to vote is wasted on the young.