I think from time to time its good to allow the people to vote, if up to you would you allow this vote?
We get to vote every 4-5 years in a general election and the government elected makes decisions. That's is the fundamental way our democracy works. Sure you can make a case for a different style of democracy, one in which referendums are commonplace, such as in Switzerland, but that isn't our approach.
So in my lifetime where I've lived there have only been 3 referendums (one I was too young to vote in) and 2 of those have been on the EU - isn't that a tad excessive in a system where we don't really use referendums. So if it important to have a referendum on the EU, twice why nothing on:
A democratically elected House of Lords
Whether we should be a member of NATO
Whether we should retain the monarchy
Whether our nuclear deterrent should be renewed
Whether we should have capital punishment
Whether we should retain membership of the UN
Whether we should be part of the Eurpoean court of human rights system
etc, etc
All these seem similarly important and long ranging - yet we've not had a vote on these. So given that we've had 2 votes on the EU, surely all of those are long overdue - do you agree.
In reality, unless we radically change our system of governance we should only use referendums in the following situation; namely where the government of the day puts forward proposals that radically change our constitution of system of governance, which it wants to enact, but really need direct approval from the electorate.
So by those criteria the votes in Scotland, Wales and London fit, the voting reform kind of does (as one part of the government wanted that change), likewise Sindyref but this one doesn't as the government doesn't want to change anything, they want to remain in the EU. Sure if a government proposed leaving the EU (a proposed change with far reaching consequences) then we'd need a referendum but it is bizarre that a government feels it has to put its plans NOT to change anything to a referendum. But of course this is entirely about placating a rump in the Tory party not about anything fundamentally democratic.