And they are also using humans as shield? Is it only the enemies of Israel that use human shields or do criminals/terrorists in Israel (if there is such a thing) or any other country do that too?

I'm not sure how we got to the human shield conversation but Hezbollah is firing from within civilian areas if that's the question: https://www.jpost.com/middle-east/article-891166

As to what's common between Hezbollah and Hamas and Iran in the way they treat their civilians I will leave that as an exercise to the reader.