In Australia you can postal vote if necessary, but "prepoll" voting is much more popular (I believe 37.5% of registered voters, 90% of which actually voted, in 2025). It's just so convenient, with the same crowd of volunteers and officials as actual polling day.
In 2020's national election, nearly 87% of California votes were by mail[1].
California offers day-of in-person voting, and has ballot-drop boxes (unmonitored) and drop-off (monitored) locations for at least several weeks (I believe it was a full month in the past election).
In Australia you can postal vote if necessary, but "prepoll" voting is much more popular (I believe 37.5% of registered voters, 90% of which actually voted, in 2025). It's just so convenient, with the same crowd of volunteers and officials as actual polling day.