Just curious, what do you do when you get ill, when your car gets broken, when your fridge stops? Do you study their inner-workings from the ground up? 

Where exactly do you start: protons, atoms, molecules, chemistry, physics, school or university programs?

Or do you go find a person who knows what to do and by some reason believe they will not fool you? And even if they do, you are confident your government would protect you if its something serious? 

 Imagine, you brought your car to the service and when next day you appear again they say they don’t know who you are and they’ve seen no car. And even their security cameras show yesterday there were only women customers 

You had to check their reputation, sign a smart contract, make a blood spell etc. this is completely your fault. This is the world you live in?