>You are right. Lot of people traveled in 20th century. But a lot more could have traveled if there was Internet in 20th century.

I seriously doubt it. The main obstacle was money. Billions travelled in the 20th century up to 2005 or so. There wasn't some surge in travel associated with GPS or mobile phone availability.

Rise was steady throughout the 20th century and associated with income raise (travel becoming less expensive). The main bumps are when e.g. developing economies boomed, flooding the market with more people to travel (e.g. the raise of the 1.4 billion strong Chinese travel market).

https://www.roccoresearch.com/wp-content/uploads/2015/06/UNW...

Rarely anyone who didn't travel didn't travel because they thought "travel is too complicated, I need a constant electronic map with me", anymore that they said on in their own country.

If anything, it's today's people who can't travel without mobile/GPS, not the much more resilient people in the 20th century. In other words, it's an acquired clutch, not something people felt really lacking that prevented them from traveling abroad.