Of course, it depends where you are going and what your travel experience is in your home country, however, I remember my first time visiting a developed country and a developing one.
In 2015, I flew out of the country for the first time to visit England for a 14 day trip. It was an eye-opening experience, which left me with a strong curiosity to continue learning and exploring, in short, it was incredible. Not too different from home, however, if you're like me, observant, you will be fascinated by the small details, history, and the subtle difference in the environment and culture. You return with a hunger to explore further, and an ability to see things in a different way from your peers, you will see and understand possibilities no one else has usually thought of because of your experiences.
In 2018, I went to Nicaragua, for 3 months to work for a fellowship. I worked with a fair trade coffee coop in the city of Esteli. But like usual I think I learned more from their beautiful lifestyle and way about life than I could do for them professionally.
Going to a foreign country, one must not go with heavy expectations as it can ruin the beauty of their trip. A trip abroad can change your life from your curiosity to the way you live your life.
I definitely encourage all to go and try it at least once. You will return a changed person, just keep your mind open.