it makes you think for a moment when a central government thinks it would be worthwhile to create a map for citizens showing where they might encounter foreigners [0]

some examples of no-foreigner signs: from 2014 [1], 2018 [2], COVID [3] [4], New Years Eve 2021 [5]

[0] http://thejapanwanko.sub.jp/?p=3255

[1] https://www.huffingtonpost.jp/2014/03/09/discrimination_n_49...

[2] https://twitter.com/altinsiderfy/status/1014099884348092418

[3] https://twitter.com/345triangle/status/1238776189482754048

[4] https://mobile.twitter.com/sanji_kinchan/status/122956825814...

[5] https://mobile.twitter.com/arudoudebito/status/1477052668963...

For bars often, most often close to US military bases.