I see this a lot of time.
Let's observe the defender. Some of the defender puts both of their hand of their genital (understandable), but there's also someone who put one of their hand in their chest (or worse, on their nose like the second man from the right)
Now, why those folks do this (putting their hand in their chest). There's nothing to protect in their chest. The reason I asked this because, I saw this a lot like everywhere from school match to world cup and they do it unconsciously so someone must start this, for a reason and somehow it becomes a global phenomenon.