This is off topic but it's a question I have about myki (once metcards are completely phased out). Say for some reason I needed to catch the bus and I had money on me, but no myki card. Would this scenario mean I couldn't catch the bus?
When Metcards are phased out, there won't be any temporary tickets available. So you'd need to purchase a myki, top it up and then you can travel.
I reckon the government should really introduce rentable myki's. So for tourists, they can rent a myki at the airport by paying a deposit. When they leave, if they want to collect their deposit, just give the card back. The same could be used for local people who are occasional public transport users.
The only problem would be the logistical part of implementing it. Given how disastrously myki was handled, I don't think this would go down very well.