I think the average person doesn't know they can use the find my phone feature on Android to lock their phone. When their phone is stolen they just get sad and call it a day and get another one. Maybe report it to police if they care in their country if police don't care, they just get another phone the day after.

I would say pins are even less secure because people usually set it up as something like their birthday and thieves also often simultaneously steal some id card in a wallet which has exactly that.