My impression of UK and other parts of Europe is that they police the cemeteries there much more than in USA. Many if not most cemeteries here are like I said largely deserted, and the primary concerns are more along the lines of preventing vandalism, criminal mischief and anything like dogs or picnics that might mess up the grounds. In urban areas they’re also concerned about sex crimes, muggings, prostitution, drug use, homeless people camping there etc.
My concerns about not looking like I’m praying Catholic prayers are usually related to some of the small historic Protestant cemeteries I visit where the church is right there and occasionally people are coming and going to the church. If I’m in the middle of Megacemetery then I’m less concerned.
Having said that, let us know what the rabbi said as I was planning to go pray in another Jewish cemetery this week and while I wasn’t planning to sprinkle holy water, it’s good to know. I usually say Kaddish when I go. My (mostly nonpracticing but they head a Jewish foundation) Jewish friend told me that was okay for me to do.
Bonus picture of cemetery I prayed in a week or so ago with nice view of nearby bridge. This one was either Methodist or non-denominational. There are houses along its edges and some kids were playing among the graves.
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