I only know two people who voted Leave - both are the wealthy, Telegraph reading bracket.
One is a QC, for him it was because he didn't like having to sign up to EU law. I asked him if EU law had ever come up against restrictions from EU law in his career (litigation) he said no. He was also concerned about the power of Germany. (All the more reason to stay in Brussels and keep it in check, no?)
He wanted a deal like Liechtenstein, which was given permission to limit the number of new residents for a period of four years when it joined the EEA, but in fact the restrictions are still in place. As its population is 40,000, I think a comparable deal for the UK is highly unlikely.
The second is my mother's BF's husband. Again, a highly educated professional. They divide their time between houses in the UK and France. He feels that the EU has deviated from its original concept. And also that the Euro is not viable in the long term.
He has 4 daughters, two of whom are married to Europeans and live and work in Europe, so they're not best pleased.