Prior to age 38, I had never left the US except for one family driving trip to Mexico when I was about 12. We were driving through south Texas to visit a relative and my Dad decided to turn south into Mexico. We crossed the border, drove around for maybe an hour, and came back. Never got out of the car.
Early in my Megacorp career, I never traveled except for one-off domestic trips. That all changed at 38. Got my passport and started regular visits to Megacorp sites in Germany, France, Japan, Mexico, and several Asian countries. Then, we took family vacations to England, France, Mexico, and Jamaica. Late in my career, I did a 3-year expat assignment in Asia. I lived in Taiwan, China, and the Philippines, while traveling almost continuously in the region, plus lots of trips back to the US. I greatly enjoyed traveling but I have little desire to go back to Asia.
In retirement, we generally travel 3 times per year, following a fairly predictable pattern: a 2 or 3 week international trip or cruise, a 1 week domestic trip to visit relatives or friends we haven't seen in a while, and a 1 week domestic trip to some place of natural beauty that we've never seen. Internationally, in 5 years of retirement, we've been to Spain, Portugal, France, Italy, the Dominican Republic, Columbia, Ecuador, Peru, Panama, Costa Rica, Nicaragua, Guatemala, and Mexico. This year, we're going back to the Dominican Republic for 2 weeks, then a 2-week tour of the western National Parks, and a trip to Seattle to visit relatives and do some sightseeing.