You are showing a bit of naivete and entitlement - if you are visiting a foreign country, you often have to apply for a travel permit. If you are applying from

You are showing a bit of naivete and entitlement - if you are visiting a foreign country, you often have to apply for a travel permit. If you are applying from Russia/China/Mongolia to UK/US they ask you for bank statements, evidence of having a stable job or holding any property in your home country, you travel itienary, and ask whether you are a person of good character. Lying on the application form results in a 10 uear or lifetime travel ban. After all that, when you arrive at the border, they ask questions and US border guards in particular may ask for access to your phone and laptop. So it does happen all the time, it's just thay typically rich tourists from America are subject to less scruitiny than folks from poorer or politically messier places