Sleep.
why do we need sleep? So I woke up before 5am, that's no reason I should be tired at 9am is it? Sleep........... I think we should have a sleeping cafe today.
Phones.
why do we need phones? I'm missing whatsapp and a navigator more than anything else. And a music player and camera too. Why do we need phones again? Or better question, why do people break their phones (like me) in the weirdest ways?
People
Why do people exist? Wouldn't it be so cool if there wouldn't be a society or humanity? Or, say, if we were all butterflies or something (something like dolphins, but butterflies are prettier and cooler, or even bears or lions, or g-raffes or something).