Looks like there’s a movement to spread open carry in Delaware. Looking over the site, it would appear people are successfully doing it. A few years ago, before Delaware passed reciprocity, I had looked into whether you could get away with this, and conventional wisdom was you probably could in Kent (excepting Dover) and Sussex County, but were probably going to get nailed for disorderly if you did it in New Castle County. I never tried it. I’m glad to see that people are proving it can be done.
Now I carry in Delaware on my Florida license concealed, so it’s a bit of a moot point to me at this point. I support the open carry movement, but I do not open carry myself.