"Like EU citizens applying for ESTA when visiting the US, citizens of the United States will also have to fill an online form and pay a nominal fee when visiting Europe."
Not saying such restrictions should be encouraged, but the same has been needed to visit the US for a long time.
Europe, however
, lets its citizens re-enter a border using automated password gates without the need for a "Global Entry" subscription (in the US, that's a product you pay for to be face-scanned and skip immigration lines when coming back home.)
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"Like EU citizens applying for ESTA when visiting the US, citizens of the United States will also have to fill an online form and pay a nominal fee when visiting Europe."
Not saying such restrictions should be encouraged, but the same has been needed to visit the US for a long time.
Europe, however , lets its citizens re-enter a border using automated password gates without the need for a "Global Entry" subscription (in the US, that's a product you pay for to be face-scanned and skip immigration lines when coming back home.)