I think it can increase convenience to Australian people to use transportation.
one card can cover everything in road transportation, it makes more easy to use.
it is bad to people that do not have Myki card because they must pay a lot of money when they travel without Mykicard.
it hard for the senior when they must add a money into their ticket.
the card-reading machines were slow and unreliable, it makes people complain very much.