In the past, you would probably only really check if a website used https if you are purchasing something, or maybe if you were logging in. In the last few years, there has (rightly) been a large movement to better ensure privacy and security. Why not have every site and every page be encrypted? That’s a good question, and one Google has already answered for itself. Not only will Google start shaming websites that are not https, they will also give an SEO boost to those that are.