Merryn Somerset Webb explains in her article here. She points out that Quebec did things differently in the 1980s, offering a second referendum once details had been negotiated.
The problem with most referenda is that they are expensive to administer and costly to replicate. Not so with Interactive Democracy (ID): doing it online has tiny marginal costs. With ID, referenda can be frequent and thus much more accurate and refined.
And I suggest that if you don't vote then your Member of Parliament should vote on your behalf, so that frequent plebiscites don't become onerous yet you are always represented.