Most commercial buildings already have railings. The problem isn't that it's where they don't have railings; you have an issue. Or railings that are in the right place but haven't been updated for many years, and now pose a problem.
And when you have a safety inspection, it'll likely keep flagging these points over and over until you rectify them. And for the most part, the failings aren't down to individual owners; they're down to older buildings that don't meet modern regulations.

