Yes was impressed with Wellington mask wearing on public transport. I do not use buses but with grandchildren visiting it was a bus ride and the cable car - on both the bus and the cable car everyone was wearing a mask.
Yes people in Wellington seem to be doing the right thing. Also probably helped by people not wearing masks being given dirty looks. IMO if people have exceptions, when wearing a badge would help, similar to what they do overseas for people with hidden disabilities. NZ is a bit behind, possibly because historically NZ has not been a big public transport country due to the lack of it