I was going to say "desensitized" but didn't like the connotations. I've seen people having sex in public on the streets of San Francisco before, so I could probably stroll right by a couple fornicating on Crissy Field and not even notice.
I guess that leaves me a perpetual "tourist,"who leaves the sheltered
confines of the Peninsula for the City several times a month, yet is not
inured to such sights.