The teens claimed CBP targeted them because they hadn’t booked hotels for their entire stay in Hawaii.
“They found it suspicious that we hadn’t fully booked our accommodations for the entire five weeks in Hawaii,” Pohl said. “We wanted to travel spontaneously. Just like we had done in Thailand and New Zealand.”
I doubt it’s common. I’ve traveled to Australia and the US (and a bunch of other places) with just a few nights in a hostel booked, sometimes even without a return flight. Might be different if you’ve got a middle eastern name or something like that, but pretty much every backpacker travels this way.
Imagine booking 2 years ahead when you’re on a writing holiday visa, that’s just nuts.