Jeeeez. Is Wisconsin a 3rd world country?
On Election Day, yes. It is the Democrat Party M.O.
Wisconsin has early voting where you go to a local governmental agency like town hall and you can vote early with the same rules that apply to in person voting. Not a big issue.
I hate the idea of mail in voting as it is really unnecessary unless you are really out of state during the time when early voting is available or election day.
Early voting starts 30 days prior to the election BTW so there is no reason the extend voting for mail in ballots.