From what I understand, 40%~ of the youth didn't even vote and now they're upset about the result... (an argument for compulsory voting goes here).
The "Leave" team, led by Farage also had disingenuous campaigns and adverts going around, it was basically a scare campaign.
A lot of leavers now want to stay in and it's too late -.-
Hopefully there'll be some kind of intervention because it's a seriously bad situation