Okay! So, I’d say about 75-80% of Americans who travel are the ones making 6+ figure salaries.
The rest of us just know how to do it on a budget.
Let me re-create my very first independent trip as an example with today’s prices (because inflation) 9 days overseas, 3 in Berlin, 3 in Prague, 3 in Dresden
$800 - r/t airfare (for a very convenient arrival time of 10am)
€112 (120 USD) - 3 nights in Berlin at a highly rated hostel
€92 (99 USD)- 2 nights in Prague at a highly rated hostel in the tourist center
€75 (80 USD)- 2 nights in Dresden at a highly rated hotel
$20- Flix bus from Berlin airport to Dresden
$20/ $50- train from Berlin to Prague (local vs fast train)
$28 - train Prague to Dresden
Totalled together, that’s $1200 for everything other than food and entertainment.
With regard to food, hostels have kitchens, so you could cook your own dinners and eat the leftovers the following day. For breakfast, you can get a bunch of yogurts and buy a bun or croissant pretty cheaply. For lunch, there are convenience shop or train station sandwichs.
So, figure something around $1600 in total once you factor in food and going to the museums and maybe a souvenir or two.
Our estimated total is $1600, I like to leave a cushion for emergency, so I would save $2000 to be safe.
So, let’s say we want to go on this trip in October (because that’s when I figured prices) of 2025. That means I should have flights and hotels booked no later than May 2025. That gives us 12 months to save from April 26, 2024.
In order to securely go on this vacation, we would need to save $167 per month for travel.
Now, there are people in circumstances that can’t save $167 per month, I’m not denying that. But, a fair amount of the country’s population is in a position where they could (if they wanted) put that money into travel. $167/month is only $42/week after all.
International travel is not only for the most upper of upper crust. Plenty of normal every day Americans travel internationally. And that’s without counting Mexico and Canada which are (contrary to your supposition) easier to travel to than Europe or Asia are.