If they can demonstrate that voter fraud is a problem..sure go ahead.
But obviosuly it shouldn't be done, unless there is justification to do so. Just apealing to 'modernising' and 'creating a system for the 21st century' doesn't really work.
Obviously its party-political though. The torries know this will help them massivly, just as the left know that their idea to give voting rights to non-citizens or under 18s will help them. All of them have moral reasons underneath, but are just being pushed for power.