I have two leave voting friends who believe the EU is a bloated, self-aggrandising, anti-democratic body, and because they felt patronised - 'the more of a disaster they say it's going to be, the more determined I am to vote to leave'. Both are early 50s, relatively wealthy and mortgage free. Interestingly, both are very disappointed with the mess they see unfolding - not that they believe they were wrong. More that the uk negotiators are a shower and that it could all have been so different.
Others I know voted leave because they were desperately unhappy with the anti-collective bargaining, heavy handed approach to wages and pensions taken by the ECB, EC etc in Spain, Greece and Portugal. I have some sympathy for this view, but the fact is that for 80% of uk workers, collective bargaining was dismantled in the 80s. Events in Spain etc are practically irrelevant IMHO unless you prioritise international solidarity over everything else.
Others I know voted leave because of unspecified concerns about TTIP. They did not agree that something much worse will come down the tracks following Brexit, and TTiP had fallen over by the ref date, even though people continued to cite it as a reason for leaving.
Others I know voted leave because they mistakenly believed Corbyn's agenda of state subsidy couldn't be carried out within the eu.
Some voted leave because they wanted to see the tories fail forever - in 10 or so years, they imagined a socialist alternative rising from the ashes.
Some voted leave because they blamed the EU for poor redundancy packages, weak unfair dismissal laws etc. They didn't accept that the EU has no influence on these rights (except to impose effective consultation).
(I went to lots of meetings and heard lots of reasons!)