"We don't have ID cards.
Not everyone has passports or driving licences.
Hence, day-to-day life doesn't require it."
While this may be true today, criminal activity is increasing leading to the need to prove one's identity, and if we don't end up with ID cards we will have de facto ID cards in Passports or Driving licences, with everyone requiring ownership of one or the other just to prove their identity even if they don't drive or go overseas.
Not saying its right, just pointing out the world is changing, and voting is just another aspect that will change, like it or not,