There's a lot of sensitive information stored in your phone, but there may still be situations where you need to hand your device over to someone for whatever reason. Maybe a friend needs to make a call, and you don't want to risk them snooping through your private messages or photos.
Luckily, most Android phones have a hidden feature that lets you avoid such situations. But not Samsung Galaxy phones, they don't have this basic feature, for reasons that have never been made clear.
