@Mordko @melanieistefan
The picture seems to first have been used in 26th of September 2021.
It is used by LeMonde and NPR. It is probably from an election in Germany, but one year earlier than you stated. And two months earlier in the year, thus making the t-shirts make sense.
https://tineye.com/search/ccba85455b9dec427803096b02b7848aabc641c2?sort=crawl_date&order=asc&page=1
Many older voters, parents with young children and Canadians with disabilities didn't vote because of long lineups at their voting sites, with Elections Canada apologizing for the wait but saying there was little else they could do in a pandemic.
@Mordko @melanieistefan You plan for everybody voting.
Denmark: 1.383 polling place (2021), population (2020): 5,882,261. People pr. polling place: 4253.
USA: 230,000 polling place (2018), population (2022): 333,287,557. People pr. polling place: 1449.
I expected this to show the opposite relationship. This just makes it even more weird that the USA gets such long queues at some polling locations.
Maybe it is the use of election machines that makes for less booths per polling place?