I grew up in a MS town which had no Jews. It only had about 3 Catholic families. During my school years, we were always served fish on Friday. No big deal because we all loved fish!
All public schools in Jackson Mississippi served fish on Fridays
Just to be safe
Imagine public schools giving a rats ass today
And our parochial schools were incorporated largely into public system
School books and sports and holidays etc
Emma French elementary 62-69
Hardy Jr high 69/70
Now all black ghetto.....yet another lost cause