I mean if I am in the Sydney CBD I am there for work. I usually need access to a variety of suburbs, the airport and the CBD itself for various work engagements. I need to be on time, and spend ideally less than 45 minutes in transit between engagements.
When I am on my own time in Sydney, I have an opal card and will train everywhere possible.
Uh, if you're in Sydney CBD, public transport (train/light rail) or even walking is faster than any kind of motor vehicle in my experience (this assumes that you have no mobility affecting disability, in which case use what you need to use).
When I am on my own time in Sydney, I have an opal card and will train everywhere possible.