Because all those other cctvs and stuff are owned by companies that don’t want to get sued for posting people’s images non-consensually online. Doesn’t matter if it’s legal to be recorded in public or not. If someone can say a company caused harm because of said imagery, it’s going to be expensive.

Individual people have no problem at all posting these videos and commenting on people they capture, and people viewing that clip will do so as well.

As for the rest; out of sight, out of mind. But even then some take measures to avoid being tracked.