Although huge swathes of the British electorate don't take the trouble to inform themselves, it's also true that polarised media coverage hampers such attempts anyway. But what is the alternative? We once had a society where only male land-owners above 35? could vote. Before that it was even worse. Gradually, more and more people were allowed a vote; there would have been revolution if, having made massive sacrifices in wars, the ordinary person had no say in who ran the country.
To make a basic IQ test to determine who can vote would be a slippery slope back to the dark ages.
Leaving the EU could cause me even bigger financial problems than those I have already, but that is what the people want and I must find a way around that. I also believe it is a massive blunder ideologically speaking, but my visions are different from the majority.